cp's OEIS Frontend

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.

A049417 a(n) = isigma(n): sum of infinitary divisors of n.

Table of values

n a(n)
1 1
2 3
3 4
4 5
5 6
6 12
7 8
8 15
9 10
10 18
11 12
12 20
13 14
14 24
15 24
16 17
17 18
18 30
19 20
20 30
21 32
22 36
23 24
24 60
25 26
26 42
27 40
28 40
29 30
30 72
31 32
32 51
33 48
34 54
35 48
36 50
37 38
38 60
39 56
40 90
41 42
42 96
43 44
44 60
45 60
46 72
47 48
48 68
49 50
50 78
51 72
52 70
53 54
54 120
55 72
56 120
57 80
58 90
59 60
60 120
61 62
62 96
63 80
64 85
65 84
66 144
67 68
68 90

List of values

[1, 3, 4, 5, 6, 12, 8, 15, 10, 18, 12, 20, 14, 24, 24, 17, 18, 30, 20, 30, 32, 36, 24, 60, 26, 42, 40, 40, 30, 72, 32, 51, 48, 54, 48, 50, 38, 60, 56, 90, 42, 96, 44, 60, 60, 72, 48, 68, 50, 78, 72, 70, 54, 120, 72, 120, 80, 90, 60, 120, 62, 96, 80, 85, 84, 144, 68, 90]

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

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