A175894 a(n) = sigma(d(n)) where d(n) is n-th divisor of 101010 (n=1..64).

1, 3, 4, 6, 12, 8, 18, 14, 24, 24, 32, 42, 72, 48, 38, 56, 96, 84, 144, 114, 168, 112, 192, 152, 252, 336, 228, 336, 576, 456, 304, 448, 684, 1008, 672, 532, 912, 1344, 912, 1216, 2016, 1596, 2736, 1824, 2688, 2128, 3648, 3192, 5472, 8064, 6384, 4256, 7296, 9576

Offset

1,2

Comments

101010 is the 71st birthday of NJAS!

Links

Table of n, a(n) for n=1..54.

Mathematica

DivisorSigma[1, #]&/@Divisors[101010] (* Harvey P. Dale, Nov 27 2015 *)

Prog

(PARI) dv=divisors(101010); for(n=1, #dv, print1(sigma(dv[n]), ", "))

Crossrefs

Sequence in context: A374457 A366439 A062822 * A175029 A113728 A000114

Adjacent sequences: A175891 A175892 A175893 * A175895 A175896 A175897

Keyword

easy,fini,full,nonn

Author

Zak Seidov, Oct 10 2010

Status

approved