2040397640

素因数分解:

$2^3\times 5^1\times {\mathrm{51009941}}^1$

素因数の和:51009952

約数の個数: 16

約数和(自身を含む): 4590894780

約数和(自身を除く): 2550497140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 51009941, 102019882, 204039764, 255049705, 408079528, 510099410, 1020198820, 2040397640]

約数ペア:

[(1, 2040397640), (2, 1020198820), (4, 510099410), (5, 408079528), (8, 255049705), (10, 204039764), (20, 102019882), (40, 51009941)]