Number of Divisors Calculator
Enter an integer from 1 through 1,000,000,000 to count its positive divisors.
A QUICK WALKTHROUGH
How to use this tool
- Enter a positive integer from 1 to 1,000,000,000.
- Calculate the exact divisor count.
- Read how many positive divisors the integer has.
Divisor-count formula
If n has prime factorization p₁ᵃ¹ × … × pₖᵃᵏ, its positive-divisor count is (a₁ + 1) × … × (aₖ + 1). The calculation factors the entered number and multiplies one more than each exponent.
Input range and exact result
The accepted range is 1 through 1,000,000,000. The tool counts positive divisors only; negative divisors are excluded.
Local calculation
The number is processed in your browser. It is not uploaded.
GOOD TO KNOW
Common questions
Does this count negative divisors?
No. It counts positive divisors only.
What is the largest accepted integer?
1,000,000,000. Values below 1 or above the limit are rejected.
Is the result approximate?
No. For an accepted integer, the divisor count is calculated exactly.