18068900

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1789}}^1$

素因数の和:1904

約数の個数: 36

約数和(自身を含む): 39619860

約数和(自身を除く): 21550960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 1789, 2020, 2525, 3578, 5050, 7156, 8945, 10100, 17890, 35780, 44725, 89450, 178900, 180689, 361378, 722756, 903445, 1806890, 3613780, 4517225, 9034450, 18068900]

約数ペア:

[(1, 18068900), (2, 9034450), (4, 4517225), (5, 3613780), (10, 1806890), (20, 903445), (25, 722756), (50, 361378), (100, 180689), (101, 178900), (202, 89450), (404, 44725), (505, 35780), (1010, 17890), (1789, 10100), (2020, 8945), (2525, 7156), (3578, 5050)]