A182142 - cp's OEIS frontend

A182142 Abundance d = sigma(N) - 2*N = A033880(N) of numbers N = A153501(n), i.e., N has d > 0 as divisor.

n	a(n)
1	4
2	3
3	2
4	12
5	10
6	8
7	4
8	2
9	120
10	7
11	56
12	78
13	8
14	2
15	2
16	672
17	32
18	16
19	4
20	2
21	532
22	152
23	136
24	8
25	68
26	31
27	992
28	128
29	8
30	64
31	32
32	16
33	4
34	8
35	128
36	32
37	8
38	2
39	43648
40	2528
41	32
42	4
43	2
44	523776
45	32
46	2272
47	32
48	32
49	127
50	16256
51	32
52	32
53	4
54	536
55	8
56	32
57	8
58	52
59	16
60	32
61	41044
62	64

[4, 3, 2, 12, 10, 8, 4, 2, 120, 7, 56, 78, 8, 2, 2, 672, 32, 16, 4, 2, 532, 152, 136, 8, 68, 31, 992, 128, 8, 64, 32, 16, 4, 8, 128, 32, 8, 2, 43648, 2528, 32, 4, 2, 523776, 32, 2272, 32, 32, 127, 16256, 32, 32, 4, 536, 8, 32, 8, 52, 16, 32, 41044, 64]

cp's OEIS Frontend

A182142 Abundance d = sigma(N) - 2*N = A033880(N) of numbers N = A153501(n), i.e., N has d > 0 as divisor.

Table of values

List of values