Others Maths Puzzle

A is a natural number. If 2A has 28 factors, 3A has 30 factors, how many factors does 6A have ? 35/40/45/48

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Others Other Question

For how many values of n will (n+44)/(n-4) be a perfect square ? 0/1/2/4 If AB^2=CCDD and A,B,C,D can be same digits but minimum one is greater than 0
then A+B+C+D =?