When product sigma(k)/d(k) = integer

Leroy Quet qq-quet at mindspring.com
Sun Jun 26 21:46:26 CEST 2005


For which n's is

product{k=1 to n} sigma(k)/d(k)

an integer?

(sigma(k) is sum{j|k} j, and d(k) = sum{j|k} 1.)

Is this sequence in the EIS?


If not, could someone calculate and submit it?

Maybe someone could also submit the integers the product equals when the 
product equals an integer.

thanks,
Leroy Quet







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