The primitive abundant numbers k (A071395) arranged by the decreasing values of their abundancy index sigma(k)/k.

A307098

The primitive abundant numbers k (A071395) arranged by the decreasing values of their abundancy index sigma(k)/k.

Terms

    a(0) =3465a(1) =15015a(2) =4095a(3) =1430a(4) =19635a(5) =16796a(6) =20a(7) =21945a(8) =5355a(9) =692835a(10) =2584a(11) =5985a(12) =23205a(13) =49742a(14) =20332a(15) =22309287a(16) =26565a(17) =188955a(18) =1870a(19) =216315a(20) =838695a(21) =25935a(22) =3128a(23) =22724a(24) =6084351a(25) =7245a(26) =2090a(27) =60214a(28) =2107575a(29) =937365

External references