Numbers m with a divisor d such that tau(d) * sigma(d) = m.

Terms

a(0) =1a(1) =6a(2) =48a(3) =168a(4) =234a(5) =336a(6) =480a(7) =720a(8) =2688a(9) =5760a(10) =6048a(11) =6552a(12) =9920a(13) =13104a(14) =14880a(15) =22932a(16) =28080a(17) =48384a(18) =60480a(19) =65520a(20) =104832a(21) =119040a(22) =195840a(23) =227584a(24) =235872a(25) =366912a(26) =587520a(27) =725760a(28) =786240a(29) =881280