Factors / Factors of 390

Factors of 390

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

390 breaks into 8 pairs, tested up to √390 ≈ 19.7; each pair multiplies back to 390 exactly. 390's full pair list is (1, 390), (2, 195), (3, 130), (5, 78), (6, 65), (10, 39), (13, 30), (15, 26), for 16 divisors in total. 390's divisors other than 390 itself sum to 618, 228 above 390: abundant. 390 is even, digit sum 12 for 390; small divisors of 390 include 2, 3, 5, 6, 10. 390 has 16 divisors; 389 has 2 and 391 has 4, so 390 wins here. 390 divided by its largest divisor, 195, gives 2.