Numbers k whose abundance is 128: sigma(k) - 2*k = 128.

Terms

a(0) =860a(1) =5336a(2) =6536a(3) =9656a(4) =16256a(5) =55796a(6) =70864a(7) =98048a(8) =361556a(9) =776096a(10) =2227616a(11) =4145216a(12) =4498136a(13) =4632896a(14) =8124416a(15) =13086016a(16) =34869056a(17) =38546576a(18) =150094976a(19) =172960856a(20) =196066256a(21) =962085536a(22) =1080008576a(23) =1733780336a(24) =1844788112a(25) =2143256576a(26) =2531343872a(27) =2986104064a(28) =9677743616a(29) =11276687456