20197907540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23485939}}^1$

素因数の和:23485991

約数の個数: 24

約数和(自身を含む): 43402017120

約数和(自身を除く): 23204109580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23485939, 46971878, 93943756, 117429695, 234859390, 469718780, 1009895377, 2019790754, 4039581508, 5049476885, 10098953770, 20197907540]

約数ペア:

[(1, 20197907540), (2, 10098953770), (4, 5049476885), (5, 4039581508), (10, 2019790754), (20, 1009895377), (43, 469718780), (86, 234859390), (172, 117429695), (215, 93943756), (430, 46971878), (860, 23485939)]