Factors / Factors of 78

Factors of 78

1, 2, 3, 6, 13, 26, 39, 78

78 breaks into 4 pairs, tested up to √78 ≈ 8.8; each pair multiplies back to 78 exactly. 78's full pair list is (1, 78), (2, 39), (3, 26), (6, 13), for 8 divisors in total. 78's divisors other than 78 itself sum to 90, 12 above 78: abundant. 78 is even, digit sum 15 for 78; small divisors of 78 include 2, 3, 6. 78 has 8 divisors; 77 has 4 and 79 has 2, so 78 wins here. 78 divided by its largest divisor, 39, gives 2.