Factors / Factors of 518

Factors of 518

1, 2, 7, 14, 37, 74, 259, 518

518 breaks into 4 pairs, tested up to √518 ≈ 22.8; each pair multiplies back to 518 exactly. 518's full pair list is (1, 518), (2, 259), (7, 74), (14, 37), for 8 divisors in total. 518's divisors other than 518 itself sum to just 394, 124 below 518: the common deficient case. 518 is even, digit sum 14 for 518; small divisors of 518 include 2, 7. 518 has 8 divisors; 517 has 4 and 519 has 4, so 518 wins here. 518 divided by its largest divisor, 259, gives 2.