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A137492
Numbers with 29 divisors.
20
268435456, 22876792454961, 37252902984619140625, 459986536544739960976801, 144209936106499234037676064081, 15502932802662396215269535105521, 28351092476867700887730107366063041
OFFSET
1,1
COMMENTS
Maple implementation: see A030513.
28th powers of primes. The n-th number with p divisors is equal to the n-th prime raised to power p-1, where p is prime. - Omar E. Pol, May 06 2008
FORMULA
A000005(a(n))=29.
a(n)=A000040(n)^(29-1)=A000040(n)^(28). - Omar E. Pol, May 06 2008
MATHEMATICA
Prime[Range[13]]^28 (* Vladimir Joseph Stephan Orlovsky, May 05 2011 *)
PROG
(PARI) a(n)=prime(n)^28 \\ Charles R Greathouse IV, Jun 19 2016
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Apr 22 2008
STATUS
approved