18040900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{6221}}^1$

素因数の和:6264

約数の個数: 36

約数和(自身を含む): 40505220

約数和(自身を除く): 22464320

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 6221, 12442, 24884, 31105, 62210, 124420, 155525, 180409, 311050, 360818, 622100, 721636, 902045, 1804090, 3608180, 4510225, 9020450, 18040900]

約数ペア:

[(1, 18040900), (2, 9020450), (4, 4510225), (5, 3608180), (10, 1804090), (20, 902045), (25, 721636), (29, 622100), (50, 360818), (58, 311050), (100, 180409), (116, 155525), (145, 124420), (290, 62210), (580, 31105), (725, 24884), (1450, 12442), (2900, 6221)]