A318877 - cp's OEIS frontend

A318877 Sum of divisors d of n for which 2*phi(d) < d.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	0
8	0
9	0
10	10
11	0
12	18
13	0
14	14
15	0
16	0
17	0
18	24
19	0
20	30
21	0
22	22
23	0
24	42
25	0
26	26
27	0
28	42
29	0
30	46
31	0
32	0
33	0
34	34
35	0
36	72
37	0
38	38
39	0
40	70
41	0
42	62
43	0
44	66
45	0
46	46
47	0
48	90
49	0
50	60
51	0
52	78
53	0
54	78
55	0
56	98
57	0
58	58
59	0
60	138
61	0
62	62
63	0
64	0
65	0
66	94
67	0
68	102
69	0
70	94
71	0
72	168
73	0
74	74
75	0
76	114
77	0
78	110
79	0
80	150
81	0
82	82
83	0
84	186
85	0
86	86
87	0
88	154
89	0
90	154
91	0
92	138
93	0
94	94
95	0

[0, 0, 0, 0, 0, 6, 0, 0, 0, 10, 0, 18, 0, 14, 0, 0, 0, 24, 0, 30, 0, 22, 0, 42, 0, 26, 0, 42, 0, 46, 0, 0, 0, 34, 0, 72, 0, 38, 0, 70, 0, 62, 0, 66, 0, 46, 0, 90, 0, 60, 0, 78, 0, 78, 0, 98, 0, 58, 0, 138, 0, 62, 0, 0, 0, 94, 0, 102, 0, 94, 0, 168, 0, 74, 0, 114, 0, 110, 0, 150, 0, 82, 0, 186, 0, 86, 0, 154, 0, 154, 0, 138, 0, 94, 0]

cp's OEIS Frontend

A318877 Sum of divisors d of n for which 2*phi(d) < d.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	0
8	0
9	0
10	10
11	0
12	18
13	0
14	14
15	0
16	0
17	0
18	24
19	0
20	30
21	0
22	22
23	0
24	42
25	0
26	26
27	0
28	42
29	0
30	46
31	0
32	0
33	0
34	34
35	0
36	72
37	0
38	38
39	0
40	70
41	0
42	62
43	0
44	66
45	0
46	46
47	0
48	90
49	0
50	60
51	0
52	78
53	0
54	78
55	0
56	98
57	0
58	58
59	0
60	138
61	0
62	62
63	0
64	0
65	0
66	94
67	0
68	102
69	0
70	94
71	0
72	168
73	0
74	74
75	0
76	114
77	0
78	110
79	0
80	150
81	0
82	82
83	0
84	186
85	0
86	86
87	0
88	154
89	0
90	154
91	0
92	138
93	0
94	94
95	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	0
8	0
9	0
10	10
11	0
12	18
13	0
14	14
15	0
16	0
17	0
18	24
19	0
20	30
21	0
22	22
23	0
24	42
25	0
26	26
27	0
28	42
29	0
30	46
31	0
32	0
33	0
34	34
35	0
36	72
37	0
38	38
39	0
40	70
41	0
42	62
43	0
44	66
45	0
46	46
47	0
48	90
49	0
50	60
51	0
52	78
53	0
54	78
55	0
56	98
57	0
58	58
59	0
60	138
61	0
62	62
63	0
64	0
65	0
66	94
67	0
68	102
69	0
70	94
71	0
72	168
73	0
74	74
75	0
76	114
77	0
78	110
79	0
80	150
81	0
82	82
83	0
84	186
85	0
86	86
87	0
88	154
89	0
90	154
91	0
92	138
93	0
94	94
95	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	0
8	0
9	0
10	10
11	0
12	18
13	0
14	14
15	0
16	0
17	0
18	24
19	0
20	30
21	0
22	22
23	0
24	42
25	0
26	26
27	0
28	42
29	0
30	46
31	0
32	0
33	0
34	34
35	0
36	72
37	0
38	38
39	0
40	70
41	0
42	62
43	0
44	66
45	0
46	46
47	0
48	90
49	0
50	60
51	0
52	78
53	0
54	78
55	0
56	98
57	0
58	58
59	0
60	138
61	0
62	62
63	0
64	0
65	0
66	94
67	0
68	102
69	0
70	94
71	0
72	168
73	0
74	74
75	0
76	114
77	0
78	110
79	0
80	150
81	0
82	82
83	0
84	186
85	0
86	86
87	0
88	154
89	0
90	154
91	0
92	138
93	0
94	94
95	0