18913900

素因数分解:

$2^2\times 5^2\times {\mathrm{189139}}^1$

素因数の和:189153

約数の個数: 18

約数和(自身を含む): 41043380

約数和(自身を除く): 22129480

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 189139, 378278, 756556, 945695, 1891390, 3782780, 4728475, 9456950, 18913900]

約数ペア:

[(1, 18913900), (2, 9456950), (4, 4728475), (5, 3782780), (10, 1891390), (20, 945695), (25, 756556), (50, 378278), (100, 189139)]