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 A139574 Numbers with 43 divisors. 18
 4398046511104, 109418989131512359209, 227373675443232059478759765625, 311973482284542371301330321821976049, 54763699237492901685126120802225273763666521, 61040881526285814362156628321386486455989674569 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 42nd 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. LINKS T. D. Noe, Table of n, a(n) for n = 1..1000 OEIS Wiki, Index entries for number of divisors FORMULA a(n)=A000040(n)^(43-1)=A000040(n)^42. MATHEMATICA Prime[Range[9]]^42 (* Vladimir Joseph Stephan Orlovsky, May 05 2011 *) PROG (PARI) a(n)=prime(n)^42 \\ Charles R Greathouse IV, Jun 19 2016 CROSSREFS Cf. A000005, A000040, A001248, A030514, A030516, A030529, A030631, A030635, A030637, A137486, A137492, A139571, A139572, A139573, A139575. Sequence in context: A233504 A013640 A185431 * A233625 A237361 A216909 Adjacent sequences:  A139571 A139572 A139573 * A139575 A139576 A139577 KEYWORD nonn,easy AUTHOR Omar E. Pol, May 09 2008 EXTENSIONS More terms from R. J. Mathar, May 11 2008 STATUS approved

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Last modified October 16 21:10 EDT 2019. Contains 328103 sequences. (Running on oeis4.)