2000421140

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{200443}}^1$

素因数の和:200951

約数の個数: 24

約数和(自身を含む): 4209324000

約数和(自身を除く): 2208902860

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 200443, 400886, 801772, 1002215, 2004430, 4008860, 100021057, 200042114, 400084228, 500105285, 1000210570, 2000421140]

約数ペア:

[(1, 2000421140), (2, 1000210570), (4, 500105285), (5, 400084228), (10, 200042114), (20, 100021057), (499, 4008860), (998, 2004430), (1996, 1002215), (2495, 801772), (4990, 400886), (9980, 200443)]