18554780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31991}}^1$

素因数の和:32029

約数の個数: 24

約数和(自身を含む): 40309920

約数和(自身を除く): 21755140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31991, 63982, 127964, 159955, 319910, 639820, 927739, 1855478, 3710956, 4638695, 9277390, 18554780]

約数ペア:

[(1, 18554780), (2, 9277390), (4, 4638695), (5, 3710956), (10, 1855478), (20, 927739), (29, 639820), (58, 319910), (116, 159955), (145, 127964), (290, 63982), (580, 31991)]