18477140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83987}}^1$

素因数の和:84007

約数の個数: 24

約数和(自身を含む): 42329952

約数和(自身を除く): 23852812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 83987, 167974, 335948, 419935, 839870, 923857, 1679740, 1847714, 3695428, 4619285, 9238570, 18477140]

約数ペア:

[(1, 18477140), (2, 9238570), (4, 4619285), (5, 3695428), (10, 1847714), (11, 1679740), (20, 923857), (22, 839870), (44, 419935), (55, 335948), (110, 167974), (220, 83987)]