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A069145 Numbers k such that A069088(k) divides k. 1
1, 4, 24, 81, 90, 112, 162, 324, 360, 384, 648, 810, 864, 960, 1024, 1944, 2592, 2688, 3072, 3240, 3456, 3969, 4320, 5040, 5488, 5760, 7128, 7168, 7776, 8640, 9000, 9072, 9504, 10368, 11025, 11200, 15360, 15876, 17280, 18144, 21168, 21504, 23296 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..1000

MATHEMATICA

f[p_, e_] := If[OddQ[e], (p + 1)*(e + 1)/2, (p + 1)*e/2 + 1]; s[1] = 1; s[n_] := Times @@ (f @@@ FactorInteger[n]); Select[Range[25000], Divisible[#, s[#]] &] (* Amiram Eldar, Sep 03 2020 *)

PROG

(PARI) for(n=1, 35000, if(n%sumdiv(n, d, core(d))==0, print1(n, ", ")))

CROSSREFS

Cf. A069088.

Sequence in context: A112742 A158494 A209456 * A264184 A211071 A212135

Adjacent sequences:  A069142 A069143 A069144 * A069146 A069147 A069148

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre, Apr 08 2002

STATUS

approved

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Last modified December 3 15:45 EST 2021. Contains 349463 sequences. (Running on oeis4.)