Factors / Factors of 450

Factors of 450

1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 450

450 breaks into 9 pairs, tested up to √450 ≈ 21.2; each pair multiplies back to 450 exactly. 450's full pair list is (1, 450), (2, 225), (3, 150), (5, 90), (6, 75), (9, 50), (10, 45), (15, 30), (18, 25), for 18 divisors in total. 450's divisors other than 450 itself sum to 759, 309 above 450: abundant. 450 is even, digit sum 9 for 450; small divisors of 450 include 2, 3, 5, 6, 9. 450 has 18 divisors; 449 has 2 and 451 has 4, so 450 wins here. 450 divided by its largest divisor, 225, gives 2.