31882051280

素因数分解:

$2^4\times 5^1\times {\mathrm{398525641}}^1$

素因数の和:398525654

約数の個数: 20

約数和(自身を含む): 74125769412

約数和(自身を除く): 42243718132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398525641, 797051282, 1594102564, 1992628205, 3188205128, 3985256410, 6376410256, 7970512820, 15941025640, 31882051280]

約数ペア:

[(1, 31882051280), (2, 15941025640), (4, 7970512820), (5, 6376410256), (8, 3985256410), (10, 3188205128), (16, 1992628205), (20, 1594102564), (40, 797051282), (80, 398525641)]