%0 Journal Article
%T On common values of $¦Õ(n)$ and $¦Ò(m)$, II
%A Kevin Ford
%A Paul Pollack
%J Mathematics
%D 2010
%I arXiv
%X Let phi(n) be Euler's totient function and let sigma(n) be the sum of the positive divisors of n. We show that most phi-values (integers in the range of phi) are not sigma-values and vice versa.
%U http://arxiv.org/abs/1012.0080v1