18813304880

素因数分解:

$2^4\times 5^1\times {\mathrm{235166311}}^1$

素因数の和:235166324

約数の個数: 20

約数和(自身を含む): 43740934032

約数和(自身を除く): 24927629152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235166311, 470332622, 940665244, 1175831555, 1881330488, 2351663110, 3762660976, 4703326220, 9406652440, 18813304880]

約数ペア:

[(1, 18813304880), (2, 9406652440), (4, 4703326220), (5, 3762660976), (8, 2351663110), (10, 1881330488), (16, 1175831555), (20, 940665244), (40, 470332622), (80, 235166311)]