On fluctuations in the mean of a sum-of-divisors function, II
Volume 108 / 2007
Colloquium Mathematicum 108 (2007), 171-177
MSC: Primary 11N37.
DOI: 10.4064/cm108-2-1
Abstract
I give explicit values for the constant implied by an Omega-estimate due to Chen and Chen [CC] on the average of the sum of the divisors of $n$ which are relatively coprime to any given integer $a$.