A057494 - cp's OEIS frontend

A057494 a(n) = Sum_{k = 1..10^n} d(k) where d(n) = number of divisors of n (A000005).

n	a(n)
0	1
1	27
2	482
3	7069
4	93668
5	1166750
6	13970034
7	162725364
8	1857511568
9	20877697634
10	231802823220
11	2548286736297
12	27785452449086
13	300880375389757
14	3239062263181054
15	34693207724724246
16	369957928177109416
17	3929837791070240368
18	41600963003695964400
19	439035480966899467508

[1, 27, 482, 7069, 93668, 1166750, 13970034, 162725364, 1857511568, 20877697634, 231802823220, 2548286736297, 27785452449086, 300880375389757, 3239062263181054, 34693207724724246, 369957928177109416, 3929837791070240368, 41600963003695964400, 439035480966899467508]

cp's OEIS Frontend

A057494 a(n) = Sum_{k = 1..10^n} d(k) where d(n) = number of divisors of n (A000005).

Table of values

List of values