Factors / Factors of 170

Factors of 170

1, 2, 5, 10, 17, 34, 85, 170

170 breaks into 4 pairs, tested up to √170 ≈ 13.0; each pair multiplies back to 170 exactly. 170's full pair list is (1, 170), (2, 85), (5, 34), (10, 17), for 8 divisors in total. 170's divisors other than 170 itself sum to just 154, 16 below 170: the common deficient case. 170 is even, digit sum 8 for 170; small divisors of 170 include 2, 5, 10. 170 has 8 divisors; 169 has 3 and 171 has 6, so 170 wins here. 170 divided by its largest divisor, 85, gives 2.