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arXiv:2202.08390 [math.NT]AbstractReferencesReviewsResources

An analogue of the Robin inequality of the second type for odd integers

Yoshihiro Koya

Published 2022-02-17Version 1

In this paper we give a variant of the Robin inequality which states that $\frac{\sigma(n)}{n} \leq \frac{e^\gamma}{2} \log\log n + \frac{0.7399\cdots}{\log\log n}$ for any odd integer $n \geq 3$.

Comments: Tables of numerical computations are submitted. Please check it out also
Categories: math.NT
Subjects: 11M06, 11M26
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