scientific article; zbMATH DE number 7246688

zbMath1468.11014MaRDI QIDQ5121296

C. A. Holdener, J. Holdener

Publication date: 14 September 2020

Full work available at URL: https://cs.uwaterloo.ca/journals/JIS/VOL23/Holdener/holdener4.html

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

sum of divisors functionperfect numberabundancy ratioabundancy outlawquasi-friendquasi-friendly divisor

Mathematics Subject Classification ID

Arithmetic functions; related numbers; inversion formulas (11A25)

Uses Software

• OEIS

Cites Work

• Odd perfect numbers are greater than $10^{1500}$
• Conditions Equivalent to the Existence of Odd Perfect Numbers
• The Abundancy Ratio, a Measure of Perfection
• Measuring the Abundancy of Integers
• More on the total number of prime factors of an odd perfect number
• Odd perfect numbers, Diophantine equations, and upper bounds
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