Search: id:A097464
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%I A097464
%S A097464 6,28,496,288288,308474880
%N A097464 5-infinitary perfect numbers: n such that 5-infinitary-sigma(n)=2*n.
%C A097464 Here 5-infinitary-sigma(a) means sum of 5-infinitary-divisor of a. If 
               n=Product p_i^r_i and d=Product p_i^s_i, each s_i has a digit a<=b 
               in its 5-ary expansion everywhere that the corresponding r_i has 
               a digit b, then d is a 5-infinitary-divisor of n.
%e A097464 Factorizations: 2*3, 2^2*7, 2^4*31, 2^5*3^2*7*11*13, 2^10*3*5*7*19*151
%Y A097464 Cf. A074849.
%Y A097464 Sequence in context: A000396 A152953 A066239 this_sequence A038182 A095723 
               A057246
%Y A097464 Adjacent sequences: A097461 A097462 A097463 this_sequence A097465 A097466 
               A097467
%K A097464 nonn
%O A097464 1,1
%A A097464 Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp) Yasutoshi

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