Factors / Factors of 455

Factors of 455

1, 5, 7, 13, 35, 65, 91, 455

455 breaks into 4 pairs, tested up to √455 ≈ 21.3; each pair multiplies back to 455 exactly. 455's full pair list is (1, 455), (5, 91), (7, 65), (13, 35), for 8 divisors in total. 455's divisors other than 455 itself sum to just 217, 238 below 455: the common deficient case. 455 is odd, digit sum 14 for 455; small divisors of 455 include 5, 7. 455 has 8 divisors; 454 has 4 and 456 has 16, so 456 wins here. 455 divided by its largest divisor, 91, gives 5.