15994040

素因数分解:

$2^3\times 5^1\times {\mathrm{399851}}^1$

素因数の和:399862

約数の個数: 16

約数和(自身を含む): 35986680

約数和(自身を除く): 19992640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 399851, 799702, 1599404, 1999255, 3198808, 3998510, 7997020, 15994040]

約数ペア:

[(1, 15994040), (2, 7997020), (4, 3998510), (5, 3198808), (8, 1999255), (10, 1599404), (20, 799702), (40, 399851)]