Factors / Factors of 310

Factors of 310

1, 2, 5, 10, 31, 62, 155, 310

310 breaks into 4 pairs, tested up to √310 ≈ 17.6; each pair multiplies back to 310 exactly. 310's full pair list is (1, 310), (2, 155), (5, 62), (10, 31), for 8 divisors in total. 310's divisors other than 310 itself sum to just 266, 44 below 310: the common deficient case. 310 is even, digit sum 4 for 310; small divisors of 310 include 2, 5, 10. 310 has 8 divisors; 309 has 4 and 311 has 2, so 310 wins here. 310 divided by its largest divisor, 155, gives 2.