21440200

素因数分解:

$2^3\times 5^2\times {\mathrm{107201}}^1$

素因数の和:107217

約数の個数: 24

約数和(自身を含む): 49848930

約数和(自身を除く): 28408730

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107201, 214402, 428804, 536005, 857608, 1072010, 2144020, 2680025, 4288040, 5360050, 10720100, 21440200]

約数ペア:

[(1, 21440200), (2, 10720100), (4, 5360050), (5, 4288040), (8, 2680025), (10, 2144020), (20, 1072010), (25, 857608), (40, 536005), (50, 428804), (100, 214402), (200, 107201)]