[seqfan] Re: Number with Sigma(n)/n a rational power
zbi74583.boat at orange.zero.jp
zbi74583.boat at orange.zero.jp
Thu Dec 12 01:44:39 CET 2013
I found RMPN k=(p/q)^r
Sigma(n)=k*n
k=(6/5)^9
2^15*3*5^16*7^3*11*17*19*29*41*43*257*409*2393*178793+6662063*466344409
k=(4/3)^6
2^7*3^11*5^2*7^2*13*17*19^2*31*37*73*127
Yasutushi
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