Browsing by Author "Ford, Kevin"

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  • On square values of the product of the Euler totient and sum of divisors functions

    Broughan, Kevin A.; Ford, Kevin; Luca, Florian (Polskiej Akademii Nauk, Instytut Matematyczny(Polish Academy of Sciences, Institute of Mathematics), 2012)
    If n is a positive integer such that ϕ(n)σ(n) = m² for some positive integer m, then m≤n. We put m = n - a and we study the positive integers a arising in this way.

Kevin Ford has 2 co-authors in Research Commons.