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 A053815 Floor(n / (sum of proper divisors of n)). 1
 2, 3, 1, 5, 1, 7, 1, 2, 1, 11, 0, 13, 1, 1, 1, 17, 0, 19, 0, 1, 1, 23, 0, 4, 1, 2, 1, 29, 0, 31, 1, 2, 1, 2, 0, 37, 1, 2, 0, 41, 0, 43, 1, 1, 1, 47, 0, 6, 1, 2, 1, 53, 0, 3, 0, 2, 1, 59, 0, 61, 1, 1, 1, 3, 0, 67, 1, 2, 0, 71, 0, 73, 1, 1, 1, 4, 0, 79, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 LINKS Charles R Greathouse IV, Table of n, a(n) for n = 2..10000 MATHEMATICA Table[Floor[n/(DivisorSigma[1, n]-n)], {n, 2, 80}] (* Harvey P. Dale, Nov 16 2017 *) PROG (PARI) a(n)=n\(sigma(n)-n) \\ Charles R Greathouse IV, Mar 11 2014 CROSSREFS Cf. A001065. Sequence in context: A089026 A080305 A220137 * A194446 A251758 A250480 Adjacent sequences: A053812 A053813 A053814 * A053816 A053817 A053818 KEYWORD nonn AUTHOR Henry Bottomley, Mar 28 2000 STATUS approved

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Last modified December 3 09:50 EST 2022. Contains 358517 sequences. (Running on oeis4.)