A248189 - cp's OEIS frontend

A248189 Least positive integer m such that m*n divides sigma(m^2+n^2), where sigma(k) is the sum of all positive divisors of k.

n	a(n)
1	1
2	1
3	1
4	7
5	2
6	38
7	4
8	81
9	1
10	102
11	868
12	1
13	9
14	3
15	702
16	26505
17	1554
18	14
19	3
20	243
21	1
22	650
23	108
24	1833
25	34542
26	18
27	68
28	186
29	7252
30	39
31	58
32	736839
33	1
34	3108
35	72
36	778
37	210
38	6
39	3
40	4830
41	267
42	2
43	567
44	5859
45	6640
46	6363
47	3178412
48	155771
49	4964
50	9

[1, 1, 1, 7, 2, 38, 4, 81, 1, 102, 868, 1, 9, 3, 702, 26505, 1554, 14, 3, 243, 1, 650, 108, 1833, 34542, 18, 68, 186, 7252, 39, 58, 736839, 1, 3108, 72, 778, 210, 6, 3, 4830, 267, 2, 567, 5859, 6640, 6363, 3178412, 155771, 4964, 9]

cp's OEIS Frontend

A248189 Least positive integer m such that m*n divides sigma(m^2+n^2), where sigma(k) is the sum of all positive divisors of k.

Table of values

List of values