18885040

素因数分解:

$2^4\times 5^1\times {\mathrm{236063}}^1$

素因数の和:236076

約数の個数: 20

約数和(自身を含む): 43907904

約数和(自身を除く): 25022864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236063, 472126, 944252, 1180315, 1888504, 2360630, 3777008, 4721260, 9442520, 18885040]

約数ペア:

[(1, 18885040), (2, 9442520), (4, 4721260), (5, 3777008), (8, 2360630), (10, 1888504), (16, 1180315), (20, 944252), (40, 472126), (80, 236063)]