A234367 - cp's OEIS frontend

A234367 Numbers such that gcd(sigma(n), n) != 1 and numerator(sigma(n)/n) > n.

n	a(n)
1	20
2	70
3	80
4	104
5	160
6	208
7	272
8	320
9	350
10	416
11	464
12	490
13	544
14	550
15	650
16	770
17	832
18	928
19	1088
20	1184
21	1190
22	1280
23	1300
24	1312
25	1332
26	1430
27	1610
28	1664
29	1696
30	1700
31	1750
32	1856
33	1870
34	1952
35	2170
36	2196
37	2210
38	2368
39	2420
40	2530
41	2560
42	2590
43	2624
44	2628
45	2750
46	2990
47	3010

[20, 70, 80, 104, 160, 208, 272, 320, 350, 416, 464, 490, 544, 550, 650, 770, 832, 928, 1088, 1184, 1190, 1280, 1300, 1312, 1332, 1430, 1610, 1664, 1696, 1700, 1750, 1856, 1870, 1952, 2170, 2196, 2210, 2368, 2420, 2530, 2560, 2590, 2624, 2628, 2750, 2990, 3010]

cp's OEIS Frontend

A234367 Numbers such that gcd(sigma(n), n) != 1 and numerator(sigma(n)/n) > n.

Table of values

List of values