20199997340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23488369}}^1$

素因数の和:23488421

約数の個数: 24

約数和(自身を含む): 43406507760

約数和(自身を除く): 23206510420

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23488369, 46976738, 93953476, 117441845, 234883690, 469767380, 1009999867, 2019999734, 4039999468, 5049999335, 10099998670, 20199997340]

約数ペア:

[(1, 20199997340), (2, 10099998670), (4, 5049999335), (5, 4039999468), (10, 2019999734), (20, 1009999867), (43, 469767380), (86, 234883690), (172, 117441845), (215, 93953476), (430, 46976738), (860, 23488369)]