A102506 - cp's OEIS frontend

A102506 Numbers n such that for some positive number k, z=n+ik is a complex multiperfect number; that is, z divides sigma(z), where sigma is the sum of divisors function extended to the complex numbers.

n	a(n)
1	1
2	5
3	6
4	10
5	12
6	28
7	60
8	72
9	100
10	108
11	120
12	140
13	150
14	204
15	263
16	300
17	526
18	600
19	672
20	720
21	912
22	1200
23	1470
24	1520
25	1704
26	3600
27	4560
28	4680
29	4828
30	5584
31	5880
32	6240
33	6312

[1, 5, 6, 10, 12, 28, 60, 72, 100, 108, 120, 140, 150, 204, 263, 300, 526, 600, 672, 720, 912, 1200, 1470, 1520, 1704, 3600, 4560, 4680, 4828, 5584, 5880, 6240, 6312]

cp's OEIS Frontend

A102506 Numbers n such that for some positive number k, z=n+ik is a complex multiperfect number; that is, z divides sigma(z), where sigma is the sum of divisors function extended to the complex numbers.

Table of values

List of values