A326142 - cp's OEIS frontend

A326142 Sum of all other divisors of n except its largest squarefree divisor: a(n) = sigma(n) - A007947(n).

n	a(n)
1	0
2	1
3	1
4	5
5	1
6	6
7	1
8	13
9	10
10	8
11	1
12	22
13	1
14	10
15	9
16	29
17	1
18	33
19	1
20	32
21	11
22	14
23	1
24	54
25	26
26	16
27	37
28	42
29	1
30	42
31	1
32	61
33	15
34	20
35	13
36	85
37	1
38	22
39	17
40	80
41	1
42	54
43	1
44	62
45	63
46	26
47	1
48	118
49	50
50	83
51	21
52	72
53	1
54	114
55	17
56	106
57	23
58	32
59	1
60	138
61	1
62	34
63	83
64	125
65	19
66	78
67	1
68	92
69	27
70	74
71	1
72	189
73	1
74	40
75	109
76	102
77	19
78	90
79	1
80	176
81	118
82	44
83	1
84	182
85	23
86	46
87	33

[0, 1, 1, 5, 1, 6, 1, 13, 10, 8, 1, 22, 1, 10, 9, 29, 1, 33, 1, 32, 11, 14, 1, 54, 26, 16, 37, 42, 1, 42, 1, 61, 15, 20, 13, 85, 1, 22, 17, 80, 1, 54, 1, 62, 63, 26, 1, 118, 50, 83, 21, 72, 1, 114, 17, 106, 23, 32, 1, 138, 1, 34, 83, 125, 19, 78, 1, 92, 27, 74, 1, 189, 1, 40, 109, 102, 19, 90, 1, 176, 118, 44, 1, 182, 23, 46, 33]

cp's OEIS Frontend

A326142 Sum of all other divisors of n except its largest squarefree divisor: a(n) = sigma(n) - A007947(n).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	5
5	1
6	6
7	1
8	13
9	10
10	8
11	1
12	22
13	1
14	10
15	9
16	29
17	1
18	33
19	1
20	32
21	11
22	14
23	1
24	54
25	26
26	16
27	37
28	42
29	1
30	42
31	1
32	61
33	15
34	20
35	13
36	85
37	1
38	22
39	17
40	80
41	1
42	54
43	1
44	62
45	63
46	26
47	1
48	118
49	50
50	83
51	21
52	72
53	1
54	114
55	17
56	106
57	23
58	32
59	1
60	138
61	1
62	34
63	83
64	125
65	19
66	78
67	1
68	92
69	27
70	74
71	1
72	189
73	1
74	40
75	109
76	102
77	19
78	90
79	1
80	176
81	118
82	44
83	1
84	182
85	23
86	46
87	33

n	a(n)
1	0
2	1
3	1
4	5
5	1
6	6
7	1
8	13
9	10
10	8
11	1
12	22
13	1
14	10
15	9
16	29
17	1
18	33
19	1
20	32
21	11
22	14
23	1
24	54
25	26
26	16
27	37
28	42
29	1
30	42
31	1
32	61
33	15
34	20
35	13
36	85
37	1
38	22
39	17
40	80
41	1
42	54
43	1
44	62
45	63
46	26
47	1
48	118
49	50
50	83
51	21
52	72
53	1
54	114
55	17
56	106
57	23
58	32
59	1
60	138
61	1
62	34
63	83
64	125
65	19
66	78
67	1
68	92
69	27
70	74
71	1
72	189
73	1
74	40
75	109
76	102
77	19
78	90
79	1
80	176
81	118
82	44
83	1
84	182
85	23
86	46
87	33

n	a(n)
1	0
2	1
3	1
4	5
5	1
6	6
7	1
8	13
9	10
10	8
11	1
12	22
13	1
14	10
15	9
16	29
17	1
18	33
19	1
20	32
21	11
22	14
23	1
24	54
25	26
26	16
27	37
28	42
29	1
30	42
31	1
32	61
33	15
34	20
35	13
36	85
37	1
38	22
39	17
40	80
41	1
42	54
43	1
44	62
45	63
46	26
47	1
48	118
49	50
50	83
51	21
52	72
53	1
54	114
55	17
56	106
57	23
58	32
59	1
60	138
61	1
62	34
63	83
64	125
65	19
66	78
67	1
68	92
69	27
70	74
71	1
72	189
73	1
74	40
75	109
76	102
77	19
78	90
79	1
80	176
81	118
82	44
83	1
84	182
85	23
86	46
87	33