A307892 - cp's OEIS frontend

A307892 a(n) = lcm(tau(n), pod(n)) / n, where tau(k) = the number of divisors of k (A000005) and pod(n) = the product of divisors of k (A007955).

n	a(n)
1	1
2	1
3	2
4	6
5	2
6	6
7	2
8	8
9	3
10	10
11	2
12	144
13	2
14	14
15	60
16	320
17	2
18	324
19	2
20	1200
21	84
22	22
23	2
24	13824
25	15
26	26
27	108
28	2352
29	2
30	27000
31	2
32	3072
33	132
34	34
35	140
36	279936
37	2
38	38
39	156
40	64000
41	2
42	74088
43	2
44	5808
45	4050
46	46
47	2
48	26542080
49	21
50	7500
51	204
52	8112
53	2
54	157464
55	220
56	175616
57	228

[1, 1, 2, 6, 2, 6, 2, 8, 3, 10, 2, 144, 2, 14, 60, 320, 2, 324, 2, 1200, 84, 22, 2, 13824, 15, 26, 108, 2352, 2, 27000, 2, 3072, 132, 34, 140, 279936, 2, 38, 156, 64000, 2, 74088, 2, 5808, 4050, 46, 2, 26542080, 21, 7500, 204, 8112, 2, 157464, 220, 175616, 228]

cp's OEIS Frontend

A307892 a(n) = lcm(tau(n), pod(n)) / n, where tau(k) = the number of divisors of k (A000005) and pod(n) = the product of divisors of k (A007955).

Table of values

List of values