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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A280685 a(n) = sum of the divisors of the product of the divisors of n.

Table of values

n a(n)
1 1
2 3
3 4
4 15
5 6
6 91
7 8
8 127
9 40
10 217
11 12
12 5080
13 14
14 399
15 403
16 2047
17 18
18 16395
19 20
20 19812
21 741
22 931
23 24
24 991111
25 156
26 1281
27 1093
28 50800
29 30
30 2929531
31 32
32 65535
33 1729
34 2149
35 1767
36 30203052
37 38
38 2667
39 2379
40 6397171
41 42
42 10506551
43 44
44 185928
45 170508
46 3871
47 48

List of values

[1, 3, 4, 15, 6, 91, 8, 127, 40, 217, 12, 5080, 14, 399, 403, 2047, 18, 16395, 20, 19812, 741, 931, 24, 991111, 156, 1281, 1093, 50800, 30, 2929531, 32, 65535, 1729, 2149, 1767, 30203052, 38, 2667, 2379, 6397171, 42, 10506551, 44, 185928, 170508, 3871, 48]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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