Factors / Factors of 530

Factors of 530

1, 2, 5, 10, 53, 106, 265, 530

530 breaks into 4 pairs, tested up to √530 ≈ 23.0; each pair multiplies back to 530 exactly. 530's full pair list is (1, 530), (2, 265), (5, 106), (10, 53), for 8 divisors in total. 530's divisors other than 530 itself sum to just 442, 88 below 530: the common deficient case. 530 is even, digit sum 8 for 530; small divisors of 530 include 2, 5, 10. 530 has 8 divisors; 529 has 3 and 531 has 6, so 530 wins here. 530 divided by its largest divisor, 265, gives 2.