21936080

素因数分解:

$2^4\times 5^1\times {\mathrm{274201}}^1$

素因数の和:274214

約数の個数: 20

約数和(自身を含む): 51001572

約数和(自身を除く): 29065492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274201, 548402, 1096804, 1371005, 2193608, 2742010, 4387216, 5484020, 10968040, 21936080]

約数ペア:

[(1, 21936080), (2, 10968040), (4, 5484020), (5, 4387216), (8, 2742010), (10, 2193608), (16, 1371005), (20, 1096804), (40, 548402), (80, 274201)]