20181276040

素因数分解:

$2^3\times 5^1\times {\mathrm{504531901}}^1$

素因数の和:504531912

約数の個数: 16

約数和(自身を含む): 45407871180

約数和(自身を除く): 25226595140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504531901, 1009063802, 2018127604, 2522659505, 4036255208, 5045319010, 10090638020, 20181276040]

約数ペア:

[(1, 20181276040), (2, 10090638020), (4, 5045319010), (5, 4036255208), (8, 2522659505), (10, 2018127604), (20, 1009063802), (40, 504531901)]