Divisors|Question Based on Divisors

Number of Divisors

Some More Questions on Circular Permutation||Total Number OF Combination || Number OF Divisors and Sum OF Divisors

Sum of all Divisors

A natural number n has exactly two divisors and (n+1) has three divisors.The number of divisors of (n+2) is

If n=10800, then find the a. total number of divisors of n. (b) The numberof even divisors. (c) The number of divisors of the form 4m+2. (d) The number of divisors which are multiples of 15.

Divisors satisfying specific condition

When a number x is divided by a divisor it is seen that the divisor = 4 times the quotient = double the remainder. If the remainder is 80 then the value of x is

If X=144 ,then A) no.of divisors (including 1 and X ) of X=15 B) sum of divisors (including 1 and X) of X=403 C) product of divisors (including 1 and X ) of X=12^(15) D) sum of reciprocals of divisors (including 1 and X) of X= (403)/(144)

Total Divisors of a numbers and proper divisor of number