18133040

素因数分解:

$2^4\times 5^1\times {\mathrm{226663}}^1$

素因数の和:226676

約数の個数: 20

約数和(自身を含む): 42159504

約数和(自身を除く): 24026464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226663, 453326, 906652, 1133315, 1813304, 2266630, 3626608, 4533260, 9066520, 18133040]

約数ペア:

[(1, 18133040), (2, 9066520), (4, 4533260), (5, 3626608), (8, 2266630), (10, 1813304), (16, 1133315), (20, 906652), (40, 453326), (80, 226663)]