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2008 AMC 10A Problem 3

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2008 AMC 10A Problem 3AMC 10 Step by Step

Name: Date: September 13, 2026

Divisibility & Factors · difficulty 1 of 5 · about 1 min · position P1-10

For the positive integer $n$ , let $\langle n\rangle$ denote the sum of all the positive divisors of $n$ with the exception of $n$ itself. For example, $\langle 4\rangle=1+2=3$ and $\langle 12 \rangle =1+2+3+4+6=16$ . What is $\langle\langle\langle 6\rangle\rangle\rangle$ ?

A)
$6$
B)
$12$
C)
$24$
D)
$32$
E)
$36$

2008 AMC 10A Problem 3

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