Factors / Factors of 325

Factors of 325

1, 5, 13, 25, 65, 325

325 breaks into 3 pairs, tested up to √325 ≈ 18.0; each pair multiplies back to 325 exactly. 325's full pair list is (1, 325), (5, 65), (13, 25), for 6 divisors in total. 325's divisors other than 325 itself sum to just 109, 216 below 325: the common deficient case. 325 is odd, digit sum 10 for 325; small divisors of 325 include 5. 325 has 6 divisors; 324 has 15 and 326 has 4, so 324 wins here. 325 divided by its largest divisor, 65, gives 5.