20001940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142871}}^1$

素因数の和:142887

約数の個数: 24

約数和(自身を含む): 48004992

約数和(自身を除く): 28003052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142871, 285742, 571484, 714355, 1000097, 1428710, 2000194, 2857420, 4000388, 5000485, 10000970, 20001940]

約数ペア:

[(1, 20001940), (2, 10000970), (4, 5000485), (5, 4000388), (7, 2857420), (10, 2000194), (14, 1428710), (20, 1000097), (28, 714355), (35, 571484), (70, 285742), (140, 142871)]