20128460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91493}}^1$

素因数の和:91513

約数の個数: 24

約数和(自身を含む): 46112976

約数和(自身を除く): 25984516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91493, 182986, 365972, 457465, 914930, 1006423, 1829860, 2012846, 4025692, 5032115, 10064230, 20128460]

約数ペア:

[(1, 20128460), (2, 10064230), (4, 5032115), (5, 4025692), (10, 2012846), (11, 1829860), (20, 1006423), (22, 914930), (44, 457465), (55, 365972), (110, 182986), (220, 91493)]