On Robin's Inequality and the Kaneko-Lagarias Inequality

Fuente: arXiv
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Autori principali: Assani, Idris, Chester, Aiden, Paschal, Alex
Natura: Preprint
Pubblicazione: 2025
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author Assani, Idris
Chester, Aiden
Paschal, Alex
author_facet Assani, Idris
Chester, Aiden
Paschal, Alex
contents We provide new, elementary proofs that Robin's inequality and the Lagarias inequality hold for almost every number, including all numbers not divisible by one of the prime numbers $2$, $3$, $5$; all primorials; given $k$ a natural number, all sufficiently large numbers of the form $2^kn$ for $n\ge1$ odd; and all $21$-free integers. Additionally, we prove that the Kaneko-Lagarias inequality holds for all natural numbers if and only if it holds for all superabundant numbers.
format Preprint
id arxiv_https___arxiv_org_abs_2503_03159
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On Robin's Inequality and the Kaneko-Lagarias Inequality
Assani, Idris
Chester, Aiden
Paschal, Alex
Number Theory
11M26, 11N56
We provide new, elementary proofs that Robin's inequality and the Lagarias inequality hold for almost every number, including all numbers not divisible by one of the prime numbers $2$, $3$, $5$; all primorials; given $k$ a natural number, all sufficiently large numbers of the form $2^kn$ for $n\ge1$ odd; and all $21$-free integers. Additionally, we prove that the Kaneko-Lagarias inequality holds for all natural numbers if and only if it holds for all superabundant numbers.
title On Robin's Inequality and the Kaneko-Lagarias Inequality
topic Number Theory
11M26, 11N56
url https://arxiv.org/abs/2503.03159