31152080

素因数分解:

$2^4\times 5^1\times {\mathrm{389401}}^1$

素因数の和:389414

約数の個数: 20

約数和(自身を含む): 72428772

約数和(自身を除く): 41276692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389401, 778802, 1557604, 1947005, 3115208, 3894010, 6230416, 7788020, 15576040, 31152080]

約数ペア:

[(1, 31152080), (2, 15576040), (4, 7788020), (5, 6230416), (8, 3894010), (10, 3115208), (16, 1947005), (20, 1557604), (40, 778802), (80, 389401)]