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On characterizing potential friends of 20 Cover

On characterizing potential friends of 20

Annals of West University of Timisoara - Mathematics and Computer Science
Volume 61 (2025): Issue 1 (January 2025)
By: Tapas Chatterjee,  Sagar Mandal and  Sourav Mandal  
Open Access
|Sep 2025

Authors

Tapas Chatterjee

tapasc@iitrpr.ac.in

Department of Mathematics, Indian Institute of Technology Ropar, Punjab, India

Sagar Mandal

sagarmandal31415@gmail.com

Department of Mathematics and Statistics, Indian Institute of Technology Kanpur Kalyanpur, India

Sourav Mandal

souravmandal1729@gmail.com

Department of Mathematics, Ramakrishna Mission Vivekananda Educational and Research Institute Howrah, India
DOI: https://doi.org/10.2478/awutm-2025-0013 | Journal eISSN: 1841-3307 | Journal ISSN: 1841-3293
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Language: English
Page range: 205 - 229
Submitted on: Jun 26, 2025
Accepted on: Sep 5, 2025
Published on: Sep 12, 2025
Published by: West University of Timisoara
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
Keywords:
abundancy index,
friendly numbers,
solitary numbers,
sum of divisors
Related subjects:
Mathematics,
General mathematics

© 2025 Tapas Chatterjee, Sagar Mandal, Sourav Mandal, published by West University of Timisoara
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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