159909920

素因数分解:

$2^5\times 5^1\times {\mathrm{999437}}^1$

素因数の和:999452

約数の個数: 24

約数和(自身を含む): 377787564

約数和(自身を除く): 217877644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 999437, 1998874, 3997748, 4997185, 7995496, 9994370, 15990992, 19988740, 31981984, 39977480, 79954960, 159909920]

約数ペア:

[(1, 159909920), (2, 79954960), (4, 39977480), (5, 31981984), (8, 19988740), (10, 15990992), (16, 9994370), (20, 7995496), (32, 4997185), (40, 3997748), (80, 1998874), (160, 999437)]