201988940

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{45289}}^1$

素因数の和:45521

約数の個数: 24

約数和(自身を含む): 426088320

約数和(自身を除く): 224099380

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 45289, 90578, 181156, 226445, 452890, 905780, 10099447, 20198894, 40397788, 50497235, 100994470, 201988940]

約数ペア:

[(1, 201988940), (2, 100994470), (4, 50497235), (5, 40397788), (10, 20198894), (20, 10099447), (223, 905780), (446, 452890), (892, 226445), (1115, 181156), (2230, 90578), (4460, 45289)]