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A088844 Multiply perfect numbers for which quotient=sigma[3,x]/x=A001158[x]/x is nonintegral. 0

%I

%S 28,2178540,45532800,142990848,14182439040,43861478400

%N Multiply perfect numbers for which quotient=sigma[3,x]/x=A001158[x]/x is nonintegral.

%Y Cf. A007691, A001158, A066269.

%K more,nonn

%O 1,1

%A _Labos Elemer_, Nov 05 2003

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Last modified October 17 01:03 EDT 2019. Contains 328103 sequences. (Running on oeis4.)