A334405 - cp's OEIS frontend

A334405 Pseudoperfect numbers k such that there is a subset of divisors of k whose sum is 2*k and for each d in this subset k/d is also in it.

n	a(n)
1	6
2	28
3	36
4	60
5	84
6	90
7	120
8	156
9	210
10	216
11	240
12	252
13	270
14	300
15	312
16	330
17	336
18	352
19	396
20	420
21	468
22	480
23	496
24	504
25	540
26	546
27	552
28	576
29	588
30	594
31	600
32	616
33	624
34	630
35	648
36	660
37	672
38	714
39	720
40	756
41	760
42	780
43	784
44	792
45	816
46	840
47	864
48	888
49	900
50	924
51	960
52	972
53	1000

[6, 28, 36, 60, 84, 90, 120, 156, 210, 216, 240, 252, 270, 300, 312, 330, 336, 352, 396, 420, 468, 480, 496, 504, 540, 546, 552, 576, 588, 594, 600, 616, 624, 630, 648, 660, 672, 714, 720, 756, 760, 780, 784, 792, 816, 840, 864, 888, 900, 924, 960, 972, 1000]

cp's OEIS Frontend

A334405 Pseudoperfect numbers k such that there is a subset of divisors of k whose sum is 2*k and for each d in this subset k/d is also in it.

Table of values

List of values