Factors / Factors of 465

Factors of 465

1, 3, 5, 15, 31, 93, 155, 465

465 breaks into 4 pairs, tested up to √465 ≈ 21.6; each pair multiplies back to 465 exactly. 465's full pair list is (1, 465), (3, 155), (5, 93), (15, 31), for 8 divisors in total. 465's divisors other than 465 itself sum to just 303, 162 below 465: the common deficient case. 465 is odd, digit sum 15 for 465; small divisors of 465 include 3, 5. 465 has 8 divisors; 464 has 10 and 466 has 4, so 464 wins here. 465 divided by its largest divisor, 155, gives 3.