Numbers k for which sigma(k)/k - 3/5 is an integer.

A218408

Numbers k for which sigma(k)/k - 3/5 is an integer.

Terms

    a(0) =15a(1) =90a(2) =3360a(3) =2618880a(4) =5059200a(5) =4873497600a(6) =7381524480a(7) =27990144000a(8) =57846297600

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