Numbers n having a proper divisor d such that sigma(n) - k*d = k*n. Case k = 4.

Terms

a(0) =27720a(1) =60480a(2) =65520a(3) =90720a(4) =98280a(5) =105840a(6) =115920a(7) =120120a(8) =120960a(9) =128520a(10) =131040a(11) =143640a(12) =151200a(13) =163800a(14) =180180a(15) =191520a(16) =205920a(17) =207900a(18) =211680a(19) =218400a(20) =229320a(21) =235620a(22) =241920a(23) =249480a(24) =264600a(25) =272160a(26) =289800a(27) =292320a(28) =312480a(29) =332640