lets see...prime factorization of 100, 2,2,5,5
so divisors are 2,4,10,20,25,50 so the sum is 111
unless you want to include 1 and 100 then the sum is 212
99
Because the sum of its proper divisors is greater than 100.
Sum of divisors: 1,392.
60
Sum of divisors of 130 = 252.
The sum is 195.
its 217
1,815
a perfect number is defined as a positive integer which is the sum of its proper positive divisors, that is, the sum of the positive divisors excluding the number itself 137,438,691,328 is the 7th perfect number.
99
14 is deficient. It is less than the sum of it's divisors. In mathematics, a deficient number or defective number is a number n for which σ(n) < 2n. Here σ(n) is the sum-of-divisors function: the sum of all positive divisors of n, including n itself Proof.. divisors of 14 are 1,2, and 7 and 14. Now, 2n=28 and and the sum the all the divisors including 14 is 24<28
The sum of all the digits of all the positive integers that are less than 100 is 4,950.
Because the sum of its proper divisors is greater than 100.
Sum of divisors: 1728.
Sum of divisors: 980.
Sum of divisors = 91.
Sum of divisors: 1,392.