A306705 - cp's OEIS frontend

A306705 a(n) = Product_{d|n} d*tau(d), where tau(k) = the number of the divisors of k (A000005).

n	a(n)
1	1
2	4
3	6
4	48
5	10
6	576
7	14
8	1536
9	162
10	1600
11	22
12	497664
13	26
14	3136
15	3600
16	122880
17	34
18	1679616
19	38
20	2304000
21	7056
22	7744
23	46
24	3057647616
25	750
26	10816
27	17496
28	6322176
29	58
30	3317760000
31	62
32	23592960
33	17424
34	18496
35	19600
36	470184984576
37	74
38	23104
39	24336
40	23592960000
41	82

[1, 4, 6, 48, 10, 576, 14, 1536, 162, 1600, 22, 497664, 26, 3136, 3600, 122880, 34, 1679616, 38, 2304000, 7056, 7744, 46, 3057647616, 750, 10816, 17496, 6322176, 58, 3317760000, 62, 23592960, 17424, 18496, 19600, 470184984576, 74, 23104, 24336, 23592960000, 82]

cp's OEIS Frontend

A306705 a(n) = Product_{d|n} d*tau(d), where tau(k) = the number of the divisors of k (A000005).

Table of values

List of values