A346644 - cp's OEIS frontend

A346644 Least k >= 1 such that sigma(k)/tau(k) has denominator n or zero if no k exists.

n	a(n)
1	1
2	2
3	4
4	8
5	16
6	450
7	64
8	128
9	36
10	162
11	1024
12	1800
13	4096
14	1458
15	144
16	32768
17	65536
18	54450
19	262144
20	405000
21	576
22	118098
23	4194304
24	28800
25	1296
26	1062882
27	900
28	5832
29	268435456
30	115200
31	1073741824
32	2147483648
33	9216
34	86093442
35	5184
36	217800
37	68719476736
38	774840978
39	102400

[1, 2, 4, 8, 16, 450, 64, 128, 36, 162, 1024, 1800, 4096, 1458, 144, 32768, 65536, 54450, 262144, 405000, 576, 118098, 4194304, 28800, 1296, 1062882, 900, 5832, 268435456, 115200, 1073741824, 2147483648, 9216, 86093442, 5184, 217800, 68719476736, 774840978, 102400]

cp's OEIS Frontend

A346644 Least k >= 1 such that sigma(k)/tau(k) has denominator n or zero if no k exists.

Table of values

List of values