A229342 - cp's OEIS frontend

A229342 a(n) = sigma(n'), the sum of divisors of the arithmetic derivative of n.

n	a(n)
2	1
3	1
4	7
5	1
6	6
7	1
8	28
9	12
10	8
11	1
12	31
13	1
14	13
15	15
16	63
17	1
18	32
19	1
20	60
21	18
22	14
23	1
24	84
25	18
26	24
27	40
28	63
29	1
30	32
31	1
32	186
33	24
34	20
35	28
36	168
37	1
38	32
39	31
40	126
41	1
42	42
43	1
44	124
45	56
46	31
47	1
48	248
49	24
50	78
51	42
52	120
53	1
54	121
55	31
56	168
57	36
58	32
59	1
60	168
61	1
62	48
63	72
64	508
65	39
66	62
67	1
68	195
69	42

[1, 1, 7, 1, 6, 1, 28, 12, 8, 1, 31, 1, 13, 15, 63, 1, 32, 1, 60, 18, 14, 1, 84, 18, 24, 40, 63, 1, 32, 1, 186, 24, 20, 28, 168, 1, 32, 31, 126, 1, 42, 1, 124, 56, 31, 1, 248, 24, 78, 42, 120, 1, 121, 31, 168, 36, 32, 1, 168, 1, 48, 72, 508, 39, 62, 1, 195, 42]

cp's OEIS Frontend

A229342 a(n) = sigma(n'), the sum of divisors of the arithmetic derivative of n.

Table of values

List of values

n	a(n)
2	1
3	1
4	7
5	1
6	6
7	1
8	28
9	12
10	8
11	1
12	31
13	1
14	13
15	15
16	63
17	1
18	32
19	1
20	60
21	18
22	14
23	1
24	84
25	18
26	24
27	40
28	63
29	1
30	32
31	1
32	186
33	24
34	20
35	28
36	168
37	1
38	32
39	31
40	126
41	1
42	42
43	1
44	124
45	56
46	31
47	1
48	248
49	24
50	78
51	42
52	120
53	1
54	121
55	31
56	168
57	36
58	32
59	1
60	168
61	1
62	48
63	72
64	508
65	39
66	62
67	1
68	195
69	42

n	a(n)
2	1
3	1
4	7
5	1
6	6
7	1
8	28
9	12
10	8
11	1
12	31
13	1
14	13
15	15
16	63
17	1
18	32
19	1
20	60
21	18
22	14
23	1
24	84
25	18
26	24
27	40
28	63
29	1
30	32
31	1
32	186
33	24
34	20
35	28
36	168
37	1
38	32
39	31
40	126
41	1
42	42
43	1
44	124
45	56
46	31
47	1
48	248
49	24
50	78
51	42
52	120
53	1
54	121
55	31
56	168
57	36
58	32
59	1
60	168
61	1
62	48
63	72
64	508
65	39
66	62
67	1
68	195
69	42

n	a(n)
2	1
3	1
4	7
5	1
6	6
7	1
8	28
9	12
10	8
11	1
12	31
13	1
14	13
15	15
16	63
17	1
18	32
19	1
20	60
21	18
22	14
23	1
24	84
25	18
26	24
27	40
28	63
29	1
30	32
31	1
32	186
33	24
34	20
35	28
36	168
37	1
38	32
39	31
40	126
41	1
42	42
43	1
44	124
45	56
46	31
47	1
48	248
49	24
50	78
51	42
52	120
53	1
54	121
55	31
56	168
57	36
58	32
59	1
60	168
61	1
62	48
63	72
64	508
65	39
66	62
67	1
68	195
69	42