Factors / Factors of 25

Factors of 25

1, 5, 25

25 is a perfect square (5² = 25); that gives 25 an odd 3-divisor count, since only 5 pairs with itself. 25's full pair list is (1, 25), (5, 5), for 3 divisors in total. 25's divisors other than 25 itself sum to just 6, 19 below 25: the common deficient case. 25 is odd, digit sum 7 for 25; small divisors of 25 include 5. 25 has 3 divisors; 24 has 8 and 26 has 4, so 24 wins here. 25 divided by its largest divisor, 5, gives 5.