Numbers k such that the total number of 1's in the binary expansion of all the divisors of k sets a new record.

A093687

Numbers k such that the total number of 1's in the binary expansion of all the divisors of k sets a new record.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =6a(4) =12a(5) =18a(6) =24a(7) =30a(8) =60a(9) =90a(10) =120a(11) =180a(12) =252a(13) =360a(14) =420a(15) =504a(16) =540a(17) =630a(18) =756a(19) =840a(20) =1080a(21) =1260a(22) =1980a(23) =2520a(24) =3780a(25) =5040a(26) =6300a(27) =7560a(28) =12600a(29) =13860

External references