21827800

素因数分解:

$2^3\times 5^2\times {\mathrm{109139}}^1$

素因数の和:109155

約数の個数: 24

約数和(自身を含む): 50750100

約数和(自身を除く): 28922300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109139, 218278, 436556, 545695, 873112, 1091390, 2182780, 2728475, 4365560, 5456950, 10913900, 21827800]

約数ペア:

[(1, 21827800), (2, 10913900), (4, 5456950), (5, 4365560), (8, 2728475), (10, 2182780), (20, 1091390), (25, 873112), (40, 545695), (50, 436556), (100, 218278), (200, 109139)]