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A088845 Multiply perfect numbers for which the quotient sigma(5,x)/x A001160(x)/x is nonintegral. 2
496, 523776, 23569920, 142990848, 14942123276641900, 20158185857531900, 212517062615532000, 275502900594021000, 622286506811515000, 2305843008139950000, 69357059049509000000, 71065075104190100000, 87934476737668000000, 154345556085771000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

PROG

(PARI) lista() = {v = readvec("b007691.txt"); for (i=1, #v, vi = v[i]; if (sigma(vi, 5) % vi, print1(vi, ", "); ); ); } \\ Michel Marcus, Dec 26 2013

CROSSREFS

Cf. A007691, A001158, A001160, A066269, A088843-A088845.

Sequence in context: A110847 A160472 A028512 * A013685 A108157 A062676

Adjacent sequences:  A088842 A088843 A088844 * A088846 A088847 A088848

KEYWORD

nonn

AUTHOR

Labos Elemer, Nov 05 2003

EXTENSIONS

Extended using A007691 b-file by Michel Marcus, Dec 26 2013

STATUS

approved

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Last modified August 20 18:56 EDT 2019. Contains 326154 sequences. (Running on oeis4.)