Difference between revisions of "2021 AMC 10B Problems/Problem 12"
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| − | + | ==Problem== | |
| + | Let <math>N = 34 \cdot 34 \cdot 63 \cdot 270</math>. What is the ratio of the sum of the odd divisors of <math>N</math> to the sum of the even divisors of <math>N</math>? | ||
| + | |||
| + | <math>\textbf{(A)} ~1 : 16 \qquad\textbf{(B)} ~1 : 15 \qquad\textbf{(C)} ~1 : 14 \qquad\textbf{(D)} ~1 : 8 \qquad\textbf{(E)} ~1 : 3</math> | ||
| + | ==Solution== | ||
| + | C | ||
Revision as of 18:42, 11 February 2021
Problem
Let 
. What is the ratio of the sum of the odd divisors of 
to the sum of the even divisors of ?
Solution
C
