Numbers n such that sigma(n) = 5*phi(n).

Terms

a(0) =56a(1) =190a(2) =812a(3) =1672a(4) =4522a(5) =5278a(6) =16065a(7) =24244a(8) =25070a(9) =33915a(10) =39585a(11) =56252a(12) =80104a(13) =93496a(14) =102856a(15) =107156a(16) =140296a(17) =157586a(18) =220616a(19) =224536a(20) =316274a(21) =317205a(22) =365638a(23) =389732a(24) =423045a(25) =479655a(26) =546592a(27) =559845a(28) =596666a(29) =601312