A378545 - cp's OEIS frontend

A378545 a(n) is the sum of those divisors d of n for which A083345(d) is odd, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

n	a(n)
1	0
2	2
3	3
4	6
5	5
6	11
7	7
8	14
9	3
10	17
11	11
12	15
13	13
14	23
15	8
16	14
17	17
18	29
19	19
20	21
21	10
22	35
23	23
24	47
25	5
26	41
27	30
28	27
29	29
30	56
31	31
32	46
33	14
34	53
35	12
36	69
37	37
38	59
39	16
40	69
41	41
42	74
43	43
44	39
45	53
46	71
47	47
48	95
49	7
50	67
51	20
52	45
53	53
54	110
55	16
56	91
57	22
58	89
59	59
60	120
61	61
62	95
63	73
64	110
65	18
66	110
67	67
68	57
69	26
70	108
71	71
72	173
73	73
74	113
75	83
76	63
77	18
78	128
79	79
80	149

[0, 2, 3, 6, 5, 11, 7, 14, 3, 17, 11, 15, 13, 23, 8, 14, 17, 29, 19, 21, 10, 35, 23, 47, 5, 41, 30, 27, 29, 56, 31, 46, 14, 53, 12, 69, 37, 59, 16, 69, 41, 74, 43, 39, 53, 71, 47, 95, 7, 67, 20, 45, 53, 110, 16, 91, 22, 89, 59, 120, 61, 95, 73, 110, 18, 110, 67, 57, 26, 108, 71, 173, 73, 113, 83, 63, 18, 128, 79, 149]

cp's OEIS Frontend

A378545 a(n) is the sum of those divisors d of n for which A083345(d) is odd, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

Table of values

List of values

n	a(n)
1	0
2	2
3	3
4	6
5	5
6	11
7	7
8	14
9	3
10	17
11	11
12	15
13	13
14	23
15	8
16	14
17	17
18	29
19	19
20	21
21	10
22	35
23	23
24	47
25	5
26	41
27	30
28	27
29	29
30	56
31	31
32	46
33	14
34	53
35	12
36	69
37	37
38	59
39	16
40	69
41	41
42	74
43	43
44	39
45	53
46	71
47	47
48	95
49	7
50	67
51	20
52	45
53	53
54	110
55	16
56	91
57	22
58	89
59	59
60	120
61	61
62	95
63	73
64	110
65	18
66	110
67	67
68	57
69	26
70	108
71	71
72	173
73	73
74	113
75	83
76	63
77	18
78	128
79	79
80	149

n	a(n)
1	0
2	2
3	3
4	6
5	5
6	11
7	7
8	14
9	3
10	17
11	11
12	15
13	13
14	23
15	8
16	14
17	17
18	29
19	19
20	21
21	10
22	35
23	23
24	47
25	5
26	41
27	30
28	27
29	29
30	56
31	31
32	46
33	14
34	53
35	12
36	69
37	37
38	59
39	16
40	69
41	41
42	74
43	43
44	39
45	53
46	71
47	47
48	95
49	7
50	67
51	20
52	45
53	53
54	110
55	16
56	91
57	22
58	89
59	59
60	120
61	61
62	95
63	73
64	110
65	18
66	110
67	67
68	57
69	26
70	108
71	71
72	173
73	73
74	113
75	83
76	63
77	18
78	128
79	79
80	149

n	a(n)
1	0
2	2
3	3
4	6
5	5
6	11
7	7
8	14
9	3
10	17
11	11
12	15
13	13
14	23
15	8
16	14
17	17
18	29
19	19
20	21
21	10
22	35
23	23
24	47
25	5
26	41
27	30
28	27
29	29
30	56
31	31
32	46
33	14
34	53
35	12
36	69
37	37
38	59
39	16
40	69
41	41
42	74
43	43
44	39
45	53
46	71
47	47
48	95
49	7
50	67
51	20
52	45
53	53
54	110
55	16
56	91
57	22
58	89
59	59
60	120
61	61
62	95
63	73
64	110
65	18
66	110
67	67
68	57
69	26
70	108
71	71
72	173
73	73
74	113
75	83
76	63
77	18
78	128
79	79
80	149