Introduction to number theory lecture 6. Multiplicative functions. @richarde.borcherds7998
Introduction to number theory lecture 6. Multiplicative functions. @richarde.borcherds7998
Uploaded January 2022 | Updated September 2026, 1 week ago
This lecture is part of my Berkeley math 115 course "Introduction to number theory"
For the other lectures in the course see youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8

We give some examples of multiplicative functions and show how to calculate them. As an application we discuss even perfect numbers.

The textbook is "An introduction to the theory of numbers" by Niven, Zuckerman, and Montgomery (5th edition).
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Richard E Borcherds |

Introduction to number theory lecture 6. Multiplicative functions.

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