204428680

素因数分解:

$2^3\times 5^1\times {\mathrm{5110717}}^1$

素因数の和:5110728

約数の個数: 16

約数和(自身を含む): 459964620

約数和(自身を除く): 255535940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5110717, 10221434, 20442868, 25553585, 40885736, 51107170, 102214340, 204428680]

約数ペア:

[(1, 204428680), (2, 102214340), (4, 51107170), (5, 40885736), (8, 25553585), (10, 20442868), (20, 10221434), (40, 5110717)]