What upper bounds exist for the frequency of perfect numbers. I.e. what functions $f(x)$ are there where we can say that as x tends to infinity, there exists so value n such that if $x>n$, the number of perfect numbers less than x is always less then $f(x)$?
2026-03-26 13:45:21.1774532721
Upper bounds of the frequency of perfect numbers.
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