A378546 - cp's OEIS frontend

A378546 a(n) is the sum of the divisors d of n for which A083345(n/d) is even, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

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

[1, 2, 3, 4, 5, 6, 7, 8, 10, 10, 11, 13, 13, 14, 16, 17, 17, 20, 19, 21, 22, 22, 23, 26, 26, 26, 30, 29, 29, 32, 31, 34, 34, 34, 36, 43, 37, 38, 40, 42, 41, 44, 43, 45, 53, 46, 47, 55, 50, 52, 52, 53, 53, 60, 56, 58, 58, 58, 59, 72, 61, 62, 73, 68, 66, 68, 67, 69, 70, 72, 71, 86, 73, 74, 83, 77, 78, 80, 79, 89, 91]

cp's OEIS Frontend

A378546 a(n) is the sum of the divisors d of n for which A083345(n/d) is even, where A083345(n) is the numerator of Sum(e/p: n=Product(p^e)).

Table of values

List of values

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

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

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