205207940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1465771}}^1$

素因数の和:1465787

約数の個数: 24

約数和(自身を含む): 492499392

約数和(自身を除く): 287291452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1465771, 2931542, 5863084, 7328855, 10260397, 14657710, 20520794, 29315420, 41041588, 51301985, 102603970, 205207940]

約数ペア:

[(1, 205207940), (2, 102603970), (4, 51301985), (5, 41041588), (7, 29315420), (10, 20520794), (14, 14657710), (20, 10260397), (28, 7328855), (35, 5863084), (70, 2931542), (140, 1465771)]