31845040

素因数分解:

$2^4\times 5^1\times {\mathrm{398063}}^1$

素因数の和:398076

約数の個数: 20

約数和(自身を含む): 74039904

約数和(自身を除く): 42194864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398063, 796126, 1592252, 1990315, 3184504, 3980630, 6369008, 7961260, 15922520, 31845040]

約数ペア:

[(1, 31845040), (2, 15922520), (4, 7961260), (5, 6369008), (8, 3980630), (10, 3184504), (16, 1990315), (20, 1592252), (40, 796126), (80, 398063)]