This preview shows page 1. Sign up to view the full content.
Unformatted text preview: d ( n ) is odd if and only if n is a perfect square. Exercise 3. 4.2.14: For any n , show that there are only ﬁnitely many numbers whose divisors add up to n . Exercise 4. 4.3.17: Suppose F and f are related by F ( n ) = ∑ d  n f ( d ) . Show that if F is multiplicative then so is f . (The other direction has been shown in class.) Exercise 5. 4.3.16: Show that f * g is multiplicative if f and g are multiplicative....
View
Full
Document
This note was uploaded on 04/05/2010 for the course CS 150 taught by Professor Humphreys,g during the Spring '08 term at UVA.
 Spring '08
 Humphreys,G

Click to edit the document details