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A175894 a(n) = sigma(d(n)) where d(n) is n-th divisor of 101010 (n=1..64). 0
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 (list; graph; refs; listen; history; text; internal format)
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: A199970 A283738 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

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Last modified September 27 15:44 EDT 2021. Contains 347691 sequences. (Running on oeis4.)