Find the number of divisors of 1080 excluding the divisors which are perfect squares. Choose the correct choice from the following answers
A) 28	B) 29	C) 30	D) 31	E) 32
1080 = 2^3 *3^3 *5^1   total no. of divisors = (3+1)*(3+1)*(1+1)= 
<gadget id="calculator">(3+1)*(3+1)*(1+1)</gadget>
<output>32</output>
32   only 4 divisors 1, 2^2=4 , 3^2=9 &amp; 2^2*3^2=36 are perfect squares   so,number of divisors excluding perfect squares divisors = 32-4= 
<gadget id="calculator">32-4</gadget>
<output>28</output>
28   28NSWER:28
<result>A</result>
Find the number of divisors of 1080 excluding the divisors which are perfect squares.