Factors / Factors of 550

Factors of 550

1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550

550 breaks into 6 pairs, tested up to √550 ≈ 23.5; each pair multiplies back to 550 exactly. 550's full pair list is (1, 550), (2, 275), (5, 110), (10, 55), (11, 50), (22, 25), for 12 divisors in total. 550's divisors other than 550 itself sum to 566, 16 above 550: abundant. 550 is even, digit sum 10 for 550; small divisors of 550 include 2, 5, 10, 11. 550 has 12 divisors; 549 has 6 and 551 has 4, so 550 wins here. 550 divided by its largest divisor, 275, gives 2.