A378549 - cp's OEIS frontend

A378549 Sum of divisors d of n such that n/d is not an odd number with an even number of prime factors (counted with multiplicity).

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	16
13	1
14	10
15	8
16	15
17	1
18	19
19	1
20	22
21	10
22	14
23	1
24	36
25	5
26	16
27	10
28	28
29	1
30	40
31	1
32	31
33	14
34	20
35	12
36	51
37	1
38	22
39	16
40	50
41	1
42	52
43	1
44	40
45	25
46	26
47	1
48	76
49	7
50	41
51	20
52	46
53	1
54	60
55	16
56	64
57	22
58	32
59	1
60	104
61	1
62	34
63	31
64	63
65	18
66	76
67	1
68	58
69	26
70	72
71	1
72	115
73	1
74	40
75	41
76	64
77	18
78	88
79	1
80	106
81	30
82	44
83	1
84	136
85	22
86	46
87	32

[0, 1, 1, 3, 1, 6, 1, 7, 3, 8, 1, 16, 1, 10, 8, 15, 1, 19, 1, 22, 10, 14, 1, 36, 5, 16, 10, 28, 1, 40, 1, 31, 14, 20, 12, 51, 1, 22, 16, 50, 1, 52, 1, 40, 25, 26, 1, 76, 7, 41, 20, 46, 1, 60, 16, 64, 22, 32, 1, 104, 1, 34, 31, 63, 18, 76, 1, 58, 26, 72, 1, 115, 1, 40, 41, 64, 18, 88, 1, 106, 30, 44, 1, 136, 22, 46, 32]

cp's OEIS Frontend

A378549 Sum of divisors d of n such that n/d is not an odd number with an even number of prime factors (counted with multiplicity).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	16
13	1
14	10
15	8
16	15
17	1
18	19
19	1
20	22
21	10
22	14
23	1
24	36
25	5
26	16
27	10
28	28
29	1
30	40
31	1
32	31
33	14
34	20
35	12
36	51
37	1
38	22
39	16
40	50
41	1
42	52
43	1
44	40
45	25
46	26
47	1
48	76
49	7
50	41
51	20
52	46
53	1
54	60
55	16
56	64
57	22
58	32
59	1
60	104
61	1
62	34
63	31
64	63
65	18
66	76
67	1
68	58
69	26
70	72
71	1
72	115
73	1
74	40
75	41
76	64
77	18
78	88
79	1
80	106
81	30
82	44
83	1
84	136
85	22
86	46
87	32

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	16
13	1
14	10
15	8
16	15
17	1
18	19
19	1
20	22
21	10
22	14
23	1
24	36
25	5
26	16
27	10
28	28
29	1
30	40
31	1
32	31
33	14
34	20
35	12
36	51
37	1
38	22
39	16
40	50
41	1
42	52
43	1
44	40
45	25
46	26
47	1
48	76
49	7
50	41
51	20
52	46
53	1
54	60
55	16
56	64
57	22
58	32
59	1
60	104
61	1
62	34
63	31
64	63
65	18
66	76
67	1
68	58
69	26
70	72
71	1
72	115
73	1
74	40
75	41
76	64
77	18
78	88
79	1
80	106
81	30
82	44
83	1
84	136
85	22
86	46
87	32

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	6
7	1
8	7
9	3
10	8
11	1
12	16
13	1
14	10
15	8
16	15
17	1
18	19
19	1
20	22
21	10
22	14
23	1
24	36
25	5
26	16
27	10
28	28
29	1
30	40
31	1
32	31
33	14
34	20
35	12
36	51
37	1
38	22
39	16
40	50
41	1
42	52
43	1
44	40
45	25
46	26
47	1
48	76
49	7
50	41
51	20
52	46
53	1
54	60
55	16
56	64
57	22
58	32
59	1
60	104
61	1
62	34
63	31
64	63
65	18
66	76
67	1
68	58
69	26
70	72
71	1
72	115
73	1
74	40
75	41
76	64
77	18
78	88
79	1
80	106
81	30
82	44
83	1
84	136
85	22
86	46
87	32