20198492840

素因数分解:

$2^3\times 5^1\times {\mathrm{504962321}}^1$

素因数の和:504962332

約数の個数: 16

約数和(自身を含む): 45446608980

約数和(自身を除く): 25248116140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504962321, 1009924642, 2019849284, 2524811605, 4039698568, 5049623210, 10099246420, 20198492840]

約数ペア:

[(1, 20198492840), (2, 10099246420), (4, 5049623210), (5, 4039698568), (8, 2524811605), (10, 2019849284), (20, 1009924642), (40, 504962321)]