A371885 - cp's OEIS frontend

A371885 a(n) is the least number k such that the sum of the final digits of the prime-power divisors of k (including 1) is n.

n	a(n)
1	1
2	11
3	2
4	3
5	33
6	5
7	4
8	7
9	15
10	12
11	21
12	20
13	9
14	28
15	8
16	76
17	49
18	24
19	36
20	27
21	16
22	54
23	32
24	48
25	135
26	80
27	64
28	112
29	240
30	192
31	336
32	320
33	144
34	216
35	128
36	1216
37	784
38	384
39	576
40	432
41	256
42	864
43	512
44	768
45	2160
46	1280
47	1024
48	1792
49	3840
50	3072
51	5376
52	5120
53	2304
54	3456
55	2048
56	19456
57	12544
58	6144
59	9216
60	6912
61	4096
62	13824

[1, 11, 2, 3, 33, 5, 4, 7, 15, 12, 21, 20, 9, 28, 8, 76, 49, 24, 36, 27, 16, 54, 32, 48, 135, 80, 64, 112, 240, 192, 336, 320, 144, 216, 128, 1216, 784, 384, 576, 432, 256, 864, 512, 768, 2160, 1280, 1024, 1792, 3840, 3072, 5376, 5120, 2304, 3456, 2048, 19456, 12544, 6144, 9216, 6912, 4096, 13824]

cp's OEIS Frontend

A371885 a(n) is the least number k such that the sum of the final digits of the prime-power divisors of k (including 1) is n.

Table of values

List of values