20197540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91807}}^1$

素因数の和:91827

約数の個数: 24

約数和(自身を含む): 46271232

約数和(自身を除く): 26073692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91807, 183614, 367228, 459035, 918070, 1009877, 1836140, 2019754, 4039508, 5049385, 10098770, 20197540]

約数ペア:

[(1, 20197540), (2, 10098770), (4, 5049385), (5, 4039508), (10, 2019754), (11, 1836140), (20, 1009877), (22, 918070), (44, 459035), (55, 367228), (110, 183614), (220, 91807)]