Factors / Factors of 138

Factors of 138

1, 2, 3, 6, 23, 46, 69, 138

138 breaks into 4 pairs, tested up to √138 ≈ 11.7; each pair multiplies back to 138 exactly. 138's full pair list is (1, 138), (2, 69), (3, 46), (6, 23), for 8 divisors in total. 138's divisors other than 138 itself sum to 150, 12 above 138: abundant. 138 is even, digit sum 12 for 138; small divisors of 138 include 2, 3, 6. 138 has 8 divisors; 137 has 2 and 139 has 2, so 138 wins here. 138 divided by its largest divisor, 69, gives 2.