{ "id": "1810.13063", "version": "v1", "published": "2018-10-31T01:39:30.000Z", "updated": "2018-10-31T01:39:30.000Z", "title": "On the number of total prime factors of an odd perfect number", "authors": [ "Joshua Zelinsky" ], "comment": "54 pages", "categories": [ "math.NT" ], "abstract": "Let $N$ be an odd perfect number. Let $\\omega(N)$ be the number of distinct prime factors of $N$ and let $\\Omega(N)$ be the total number of prime factors of $N$. We prove that if $(3,N)=1$, then $ \\frac{302}{113}\\omega - \\frac{286}{113} \\leq \\Omega. $ If $3|N$, then $\\frac{66}{25}\\omega-5\\leq\\Omega.$ This is an improvement on similar prior results by the author which was an improvement of a result of Ochem and Rao. We also establish new lower bounds on $\\omega(N)$ in terms of the smallest prime factor of $N$ and establish new lower bounds on $N$ in terms of its smallest prime factor.", "revisions": [ { "version": "v1", "updated": "2018-10-31T01:39:30.000Z" } ], "analyses": { "subjects": [ "11A05", "11A25" ], "keywords": [ "odd perfect number", "total prime factors", "smallest prime factor", "lower bounds", "distinct prime factors" ], "note": { "typesetting": "TeX", "pages": 54, "language": "en", "license": "arXiv", "status": "editable" } } }