Coreful 3-abundant numbers: numbers k such that csigma(k) > 3*k, where csigma(k) is the sum of the coreful divisors of k (A057723).

A340109

Coreful 3-abundant numbers: numbers k such that csigma(k) > 3*k, where csigma(k) is the sum of the coreful divisors of k (A057723).

Terms

    a(0) =5400a(1) =7200a(2) =10800a(3) =14400a(4) =16200a(5) =18000a(6) =21168a(7) =21600a(8) =27000a(9) =28800a(10) =32400a(11) =36000a(12) =37800a(13) =42336a(14) =43200a(15) =48600a(16) =50400a(17) =54000a(18) =56448a(19) =57600a(20) =59400a(21) =63504a(22) =64800a(23) =70200a(24) =72000a(25) =75600a(26) =79200a(27) =81000a(28) =84672a(29) =86400

External references