A349770 - cp's OEIS frontend

A349770 a(n) = Sum_{d|n} usigma(d) * usigma(n/d).

n	a(n)
1	1
2	6
3	8
4	19
5	12
6	48
7	16
8	48
9	36
10	72
11	24
12	152
13	28
14	96
15	96
16	113
17	36
18	216
19	40
20	228
21	128
22	144
23	48
24	384
25	88
26	168
27	136
28	304
29	60
30	576
31	64
32	258
33	192
34	216
35	192
36	684
37	76
38	240
39	224
40	576
41	84
42	768
43	88
44	456
45	432
46	288
47	96
48	904
49	164
50	528
51	288
52	532
53	108
54	816
55	288
56	768
57	320
58	360
59	120
60	1824

[1, 6, 8, 19, 12, 48, 16, 48, 36, 72, 24, 152, 28, 96, 96, 113, 36, 216, 40, 228, 128, 144, 48, 384, 88, 168, 136, 304, 60, 576, 64, 258, 192, 216, 192, 684, 76, 240, 224, 576, 84, 768, 88, 456, 432, 288, 96, 904, 164, 528, 288, 532, 108, 816, 288, 768, 320, 360, 120, 1824]

cp's OEIS Frontend

A349770 a(n) = Sum_{d|n} usigma(d) * usigma(n/d).

Table of values

List of values