20544100

素因数分解:

$2^2\times 5^2\times {\mathrm{205441}}^1$

素因数の和:205455

約数の個数: 18

約数和(自身を含む): 44580914

約数和(自身を除く): 24036814

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 205441, 410882, 821764, 1027205, 2054410, 4108820, 5136025, 10272050, 20544100]

約数ペア:

[(1, 20544100), (2, 10272050), (4, 5136025), (5, 4108820), (10, 2054410), (20, 1027205), (25, 821764), (50, 410882), (100, 205441)]