English

The mean number of divisors for rough, dense and practical numbers

Number Theory 2023-06-28 v2

Abstract

We give asymptotic estimates for the mean number of divisors of integers without small prime factors, integers with bounded ratios of consecutive divisors, and for practical numbers. In the last case, this confirms a conjecture of Margenstern.

Keywords

Cite

@article{arxiv.2104.07137,
  title  = {The mean number of divisors for rough, dense and practical numbers},
  author = {Andreas Weingartner},
  journal= {arXiv preprint arXiv:2104.07137},
  year   = {2023}
}

Comments

18 pages, 2 figures