A144695 - cp's OEIS frontend

A144695 Numbers n such that sigma_1(n)/sigma_0(n) = c^2, c an integer.

n	a(n)
1	1
2	7
3	17
4	22
5	30
6	31
7	71
8	94
9	97
10	115
11	119
12	127
13	138
14	154
15	164
16	165
17	199
18	210
19	214
20	217
21	241
22	260
23	265
24	318
25	337
26	343
27	374
28	382
29	449
30	497
31	510
32	513
33	517
34	527
35	577
36	647
37	658
38	668
39	679
40	682
41	705
42	745
43	759
44	805
45	862
46	881
47	889
48	894
49	930
50	966
51	967
52	996
53	1102
54	1125

[1, 7, 17, 22, 30, 31, 71, 94, 97, 115, 119, 127, 138, 154, 164, 165, 199, 210, 214, 217, 241, 260, 265, 318, 337, 343, 374, 382, 449, 497, 510, 513, 517, 527, 577, 647, 658, 668, 679, 682, 705, 745, 759, 805, 862, 881, 889, 894, 930, 966, 967, 996, 1102, 1125]

cp's OEIS Frontend

A144695 Numbers n such that sigma_1(n)/sigma_0(n) = c^2, c an integer.

Table of values

List of values