Numbers n such that sopf(sigma(n)) = sigma(sopf(n)), where sopf(x) = sum of the distinct prime factors of x.

A076532

Numbers n such that sopf(sigma(n)) = sigma(sopf(n)), where sopf(x) = sum of the distinct prime factors of x.

Terms

    a(0) =2a(1) =90a(2) =425a(3) =490a(4) =605a(5) =630a(6) =726a(7) =735a(8) =750a(9) =816a(10) =2250a(11) =2695a(12) =3185a(13) =3234a(14) =3420a(15) =3822a(16) =4176a(17) =5096a(18) =5250a(19) =6591a(20) =7644a(21) =8470a(22) =9100a(23) =9425a(24) =10296a(25) =10780a(26) =11616a(27) =11638a(28) =12321a(29) =15750

External references