A334783 - cp's OEIS frontend

A334783 a(n) = Sum_{d|n} lcm(d, sigma(d)).

n	a(n)
1	1
2	7
3	13
4	35
5	31
6	31
7	57
8	155
9	130
10	127
11	133
12	143
13	183
14	231
15	163
16	651
17	307
18	382
19	381
20	575
21	741
22	535
23	553
24	383
25	806
26	735
27	1210
28	315
29	871
30	631
31	993
32	2667
33	673
34	1231
35	1767
36	3770
37	1407
38	1527
39	2379
40	1055
41	1723
42	1599
43	1893
44	1487
45	1450
46	2215
47	2257
48	2367
49	2850
50	5552

[1, 7, 13, 35, 31, 31, 57, 155, 130, 127, 133, 143, 183, 231, 163, 651, 307, 382, 381, 575, 741, 535, 553, 383, 806, 735, 1210, 315, 871, 631, 993, 2667, 673, 1231, 1767, 3770, 1407, 1527, 2379, 1055, 1723, 1599, 1893, 1487, 1450, 2215, 2257, 2367, 2850, 5552]

cp's OEIS Frontend

A334783 a(n) = Sum_{d|n} lcm(d, sigma(d)).

Table of values

List of values