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Question

Let "k" be the number of factors (excluding 1 and the expression itself) of the number 38808 and "m" be the sum of its divisors. Let "h" be the remainder of m/k. Find the sum of the digits of "h" ?

A
1
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B
0
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C
2
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D
5
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Solution

The correct option is A 1
Part 1: The number 38808=23.32.72.11
Hence the total number of divisors (excluding 1 and itself i.e. 38808)
= (3+1)(2+1)(2+1)(1+1)2= 70
Part 2: The sum of these divisors
= (20+21+22+23)(30+31+32)(70+71+72)(110+111)= (15)(13)(57)(12)138808=133308138808=94571
remainder is 1

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