28112080

素因数分解:

$2^4\times 5^1\times {\mathrm{351401}}^1$

素因数の和:351414

約数の個数: 20

約数和(自身を含む): 65360772

約数和(自身を除く): 37248692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351401, 702802, 1405604, 1757005, 2811208, 3514010, 5622416, 7028020, 14056040, 28112080]

約数ペア:

[(1, 28112080), (2, 14056040), (4, 7028020), (5, 5622416), (8, 3514010), (10, 2811208), (16, 1757005), (20, 1405604), (40, 702802), (80, 351401)]