A276678 - cp's OEIS frontend

A276678 Number of divisors of the n-th pentagonal number.

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

[1, 2, 6, 4, 4, 4, 8, 6, 6, 4, 10, 16, 4, 4, 16, 8, 6, 6, 12, 8, 8, 8, 8, 12, 6, 8, 32, 8, 4, 8, 8, 20, 12, 4, 24, 12, 8, 4, 16, 24, 4, 16, 14, 8, 12, 4, 16, 32, 6, 6, 24, 16, 4, 16, 16, 12, 16, 4, 16, 16, 8, 8, 24, 12, 8, 8, 18, 16, 8, 16, 8, 36, 4, 8, 60, 8]

cp's OEIS Frontend

A276678 Number of divisors of the n-th pentagonal number.

Table of values

List of values

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

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

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