A334729 - cp's OEIS frontend

A334729 a(n) = Product_{d|n} gcd(tau(d), sigma(d)).

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	8
7	2
8	1
9	2
10	4
11	2
12	16
13	2
14	8
15	16
16	1
17	2
18	24
19	2
20	24
21	16
22	8
23	2
24	64
25	2
26	4
27	8
28	16
29	2
30	1024
31	2
32	3
33	16
34	4
35	16
36	48
37	2
38	8
39	16
40	48
41	2
42	2048
43	2
44	48
45	96
46	8
47	2
48	128
49	6
50	12
51	16
52	8
53	2
54	768
55	16
56	128
57	16
58	4
59	2
60	147456
61	2
62	8
63	32
64	3
65	16
66	2048
67	2
68	24
69	16
70	1024
71	2

[1, 1, 2, 1, 2, 8, 2, 1, 2, 4, 2, 16, 2, 8, 16, 1, 2, 24, 2, 24, 16, 8, 2, 64, 2, 4, 8, 16, 2, 1024, 2, 3, 16, 4, 16, 48, 2, 8, 16, 48, 2, 2048, 2, 48, 96, 8, 2, 128, 6, 12, 16, 8, 2, 768, 16, 128, 16, 4, 2, 147456, 2, 8, 32, 3, 16, 2048, 2, 24, 16, 1024, 2]

cp's OEIS Frontend

A334729 a(n) = Product_{d|n} gcd(tau(d), sigma(d)).

Table of values

List of values