If r is the smallest positive integer that is not prime and not a factor of 50!, what is the sum of the factors of r?
Choose the correct choice from the following options: A) 51 B) 162 C) 72 D) 54 E) 50!+2
In fact 51=3*17 IS a factor of 50!.   The smallest positive integer that is NOT prime and NOT a factor of 50! is 106=2*53. The sum of the factors of 106 is 162.   Answer: 162.
<result>B</result>
If r is the smallest positive integer that is not prime and not a factor of 50!, what is the sum of the factors of r?