A338520 - cp's OEIS frontend

A338520 Integers that can be expressed as a product d*sigma(d), where sigma is the sum of divisors function, in a single way.

n	a(n)
1	1
2	6
3	12
4	28
5	30
6	56
7	72
8	117
9	120
10	132
11	180
12	182
13	306
14	360
15	380
16	496
17	552
18	672
19	702
20	775
21	792
22	840
23	870
24	992
25	1080
26	1092
27	1406
28	1440
29	1568
30	1584
31	1680
32	1722
33	1836
34	1892
35	2016
36	2160
37	2184
38	2256
39	2280
40	2793
41	2862
42	3276
43	3312
44	3510
45	3540
46	3600
47	3672
48	3696
49	3782
50	3960

[1, 6, 12, 28, 30, 56, 72, 117, 120, 132, 180, 182, 306, 360, 380, 496, 552, 672, 702, 775, 792, 840, 870, 992, 1080, 1092, 1406, 1440, 1568, 1584, 1680, 1722, 1836, 1892, 2016, 2160, 2184, 2256, 2280, 2793, 2862, 3276, 3312, 3510, 3540, 3600, 3672, 3696, 3782, 3960]

cp's OEIS Frontend

A338520 Integers that can be expressed as a product d*sigma(d), where sigma is the sum of divisors function, in a single way.

Table of values

List of values