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A062727 Sum of the divisors of n^n (A000312). 7
1, 1, 7, 40, 511, 3906, 138811, 960800, 33554431, 581130733, 24987792457, 313842837672, 26748283770391, 328114698808274, 25927224666044919, 821051025385244160, 36893488147419103231, 878942778254232811938 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
FORMULA
a(n) = A000203(A000312(n)). - Michel Marcus, Jan 10 2015
MATHEMATICA
Table[DivisorSigma[1, n^n], {n, 1, 5!}] (* Vladimir Joseph Stephan Orlovsky, Feb 26 2009 *)
PROG
(PARI) for(n=0, 22, print(sigma(n^n)))
(PARI) { for (n=0, 100, write("b062727.txt", n, " ", sigma(n^n)) ) } \\ Harry J. Smith, Aug 09 2009
CROSSREFS
Cf. A000312.
Sequence in context: A356459 A226223 A356046 * A223416 A165397 A123747
KEYWORD
nonn
AUTHOR
Jason Earls, Jul 11 2001
STATUS
approved

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Last modified March 29 02:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)