168390140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271597}}^1$

素因数の和:271637

約数の個数: 24

約数和(自身を含む): 365027712

約数和(自身を除く): 196637572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 271597, 543194, 1086388, 1357985, 2715970, 5431940, 8419507, 16839014, 33678028, 42097535, 84195070, 168390140]

約数ペア:

[(1, 168390140), (2, 84195070), (4, 42097535), (5, 33678028), (10, 16839014), (20, 8419507), (31, 5431940), (62, 2715970), (124, 1357985), (155, 1086388), (310, 543194), (620, 271597)]