Numbers n such that sigma(n) = 16*phi(n).

Terms

a(0) =20790a(1) =26040a(2) =43890a(3) =268380a(4) =368280a(5) =377580a(6) =415380a(7) =426720a(8) =547470a(9) =566580a(10) =777480a(11) =906780a(12) =996030a(13) =1659000a(14) =1744470a(15) =2102730a(16) =2179320a(17) =2454270a(18) =2699970a(19) =3682770a(20) =4373880a(21) =5053860a(22) =5340060a(23) =5791170a(24) =5874660a(25) =5894070a(26) =5936280a(27) =6035040a(28) =7067340a(29) =8013060