A178636 - cp's OEIS frontend

A178636 If n = Product (p_i^k_i) for i = 1, ..., j then a(n) is the sum of the divisors d that are not in the set {1, p_1^k_1, p_2^k_2, ..., p_j^k_j}.

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	6
7	0
8	6
9	3
10	10
11	0
12	20
13	0
14	14
15	15
16	14
17	0
18	27
19	0
20	32
21	21
22	22
23	0
24	48
25	5
26	26
27	12
28	44
29	0
30	61
31	0
32	30
33	33
34	34
35	35
36	77
37	0
38	38
39	39
40	76
41	0
42	83
43	0
44	68
45	63
46	46
47	0
48	104
49	7
50	65
51	51
52	80
53	0
54	90
55	55
56	104
57	57
58	58
59	0
60	155
61	0
62	62
63	87
64	62
65	65
66	127
67	0
68	104
69	69
70	129
71	0
72	177
73	0
74	74
75	95
76	116
77	77
78	149
79	0
80	164
81	39
82	82
83	0
84	209
85	85
86	86
87	87
88	160
89	0
90	217
91	91
92	140
93	93
94	94
95	95
96	216
97	0
98	119
99	135
100	187

[0, 0, 0, 2, 0, 6, 0, 6, 3, 10, 0, 20, 0, 14, 15, 14, 0, 27, 0, 32, 21, 22, 0, 48, 5, 26, 12, 44, 0, 61, 0, 30, 33, 34, 35, 77, 0, 38, 39, 76, 0, 83, 0, 68, 63, 46, 0, 104, 7, 65, 51, 80, 0, 90, 55, 104, 57, 58, 0, 155, 0, 62, 87, 62, 65, 127, 0, 104, 69, 129, 0, 177, 0, 74, 95, 116, 77, 149, 0, 164, 39, 82, 0, 209, 85, 86, 87, 160, 0, 217, 91, 140, 93, 94, 95, 216, 0, 119, 135, 187]

cp's OEIS Frontend

A178636 If n = Product (p_i^k_i) for i = 1, ..., j then a(n) is the sum of the divisors d that are not in the set {1, p_1^k_1, p_2^k_2, ..., p_j^k_j}.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	6
7	0
8	6
9	3
10	10
11	0
12	20
13	0
14	14
15	15
16	14
17	0
18	27
19	0
20	32
21	21
22	22
23	0
24	48
25	5
26	26
27	12
28	44
29	0
30	61
31	0
32	30
33	33
34	34
35	35
36	77
37	0
38	38
39	39
40	76
41	0
42	83
43	0
44	68
45	63
46	46
47	0
48	104
49	7
50	65
51	51
52	80
53	0
54	90
55	55
56	104
57	57
58	58
59	0
60	155
61	0
62	62
63	87
64	62
65	65
66	127
67	0
68	104
69	69
70	129
71	0
72	177
73	0
74	74
75	95
76	116
77	77
78	149
79	0
80	164
81	39
82	82
83	0
84	209
85	85
86	86
87	87
88	160
89	0
90	217
91	91
92	140
93	93
94	94
95	95
96	216
97	0
98	119
99	135
100	187

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	6
7	0
8	6
9	3
10	10
11	0
12	20
13	0
14	14
15	15
16	14
17	0
18	27
19	0
20	32
21	21
22	22
23	0
24	48
25	5
26	26
27	12
28	44
29	0
30	61
31	0
32	30
33	33
34	34
35	35
36	77
37	0
38	38
39	39
40	76
41	0
42	83
43	0
44	68
45	63
46	46
47	0
48	104
49	7
50	65
51	51
52	80
53	0
54	90
55	55
56	104
57	57
58	58
59	0
60	155
61	0
62	62
63	87
64	62
65	65
66	127
67	0
68	104
69	69
70	129
71	0
72	177
73	0
74	74
75	95
76	116
77	77
78	149
79	0
80	164
81	39
82	82
83	0
84	209
85	85
86	86
87	87
88	160
89	0
90	217
91	91
92	140
93	93
94	94
95	95
96	216
97	0
98	119
99	135
100	187

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	6
7	0
8	6
9	3
10	10
11	0
12	20
13	0
14	14
15	15
16	14
17	0
18	27
19	0
20	32
21	21
22	22
23	0
24	48
25	5
26	26
27	12
28	44
29	0
30	61
31	0
32	30
33	33
34	34
35	35
36	77
37	0
38	38
39	39
40	76
41	0
42	83
43	0
44	68
45	63
46	46
47	0
48	104
49	7
50	65
51	51
52	80
53	0
54	90
55	55
56	104
57	57
58	58
59	0
60	155
61	0
62	62
63	87
64	62
65	65
66	127
67	0
68	104
69	69
70	129
71	0
72	177
73	0
74	74
75	95
76	116
77	77
78	149
79	0
80	164
81	39
82	82
83	0
84	209
85	85
86	86
87	87
88	160
89	0
90	217
91	91
92	140
93	93
94	94
95	95
96	216
97	0
98	119
99	135
100	187