19768160

素因数分解:

$2^5\times 5^1\times {\mathrm{123551}}^1$

素因数の和:123566

約数の個数: 24

約数和(自身を含む): 46702656

約数和(自身を除く): 26934496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123551, 247102, 494204, 617755, 988408, 1235510, 1976816, 2471020, 3953632, 4942040, 9884080, 19768160]

約数ペア:

[(1, 19768160), (2, 9884080), (4, 4942040), (5, 3953632), (8, 2471020), (10, 1976816), (16, 1235510), (20, 988408), (32, 617755), (40, 494204), (80, 247102), (160, 123551)]