5-infinitary

[y.kohmoto]

    Hello, Neil
    I bought a digital-camera.
    Probably I will send a photo to 100k party.

    This sequence is solutions for a kind of perfect number.

    %I A000001
    %S A000001 6, 28, 496, 288288, 308474880
    %N A000001      5-infinitary perfect numbers: n such that
              5-infinitary-sigma(n)=2*n.
    %C A000001  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 A000001   Factorizations: 2*3, 2^2*7, 2^4*31, 2^5*3^2*7*11*13,
2^10*3*5*7*19*151
     %Y A000001 A074849
    %K A000001 nonn
    %O A000001 1, 1
    %A A000001 Yasutoshi Kohmoto (zbi74583 at boat.zero.ad.jp)

    Yasutoshi