Question

sum of divisors of a natural number that is the formula

Answer 1

Answer:

n(n-1)/2

I Think.

plz mark as brainlist.

Answer 2

Step-by-step explanation:

sum of all divisor of a natural number .Given a natural number calculate sum of all it proper divisor. A proper divisor of a natural number is the divisor that is strictly less than the number .for example 20 has 5 proper divisor :1,2,4,5,10.