A299788 - cp's OEIS frontend

A299788 a(n) = denominator of Product_{d|n} (sigma(d)/d) where sigma(k) = the sum of the divisors of k (A000203).

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	1
7	7
8	64
9	27
10	25
11	11
12	3
13	13
14	49
15	25
16	1024
17	17
18	27
19	19
20	1000
21	441
22	121
23	23
24	16
25	125
26	169
27	729
28	7
29	29
30	625
31	31
32	32768
33	121
34	289
35	1225
36	5832
37	37
38	361
39	1521
40	6400
41	41
42	2401
43	43
44	1331
45	3375
46	529
47	47
48	3072
49	343
50	31250
51	289
52	17576
53	53
54	6561
55	3025
56	49

[1, 2, 3, 8, 5, 1, 7, 64, 27, 25, 11, 3, 13, 49, 25, 1024, 17, 27, 19, 1000, 441, 121, 23, 16, 125, 169, 729, 7, 29, 625, 31, 32768, 121, 289, 1225, 5832, 37, 361, 1521, 6400, 41, 2401, 43, 1331, 3375, 529, 47, 3072, 343, 31250, 289, 17576, 53, 6561, 3025, 49]

cp's OEIS Frontend

A299788 a(n) = denominator of Product_{d|n} (sigma(d)/d) where sigma(k) = the sum of the divisors of k (A000203).

Table of values

List of values