168239080

素因数分解:

$2^3\times 5^1\times {\mathrm{4205977}}^1$

素因数の和:4205988

約数の個数: 16

約数和(自身を含む): 378538020

約数和(自身を除く): 210298940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4205977, 8411954, 16823908, 21029885, 33647816, 42059770, 84119540, 168239080]

約数ペア:

[(1, 168239080), (2, 84119540), (4, 42059770), (5, 33647816), (8, 21029885), (10, 16823908), (20, 8411954), (40, 4205977)]