Unitary-sigma sigma multiply perfect numbers: numbers k such that A061765(k) = m*k for some integer m.

A045795

Unitary-sigma sigma multiply perfect numbers: numbers k such that A061765(k) = m*k for some integer m.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =10a(5) =16a(6) =24a(7) =27a(8) =30a(9) =54a(10) =63a(11) =64a(12) =108a(13) =126a(14) =165a(15) =238a(16) =252a(17) =360a(18) =432a(19) =504a(20) =512a(21) =660a(22) =864a(23) =952a(24) =1008a(25) =1536a(26) =1728a(27) =2016a(28) =2464a(29) =2640

External references