80045080

素因数分解:

$2^3\times 5^1\times {\mathrm{2001127}}^1$

素因数の和:2001138

約数の個数: 16

約数和(自身を含む): 180101520

約数和(自身を除く): 100056440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2001127, 4002254, 8004508, 10005635, 16009016, 20011270, 40022540, 80045080]

約数ペア:

[(1, 80045080), (2, 40022540), (4, 20011270), (5, 16009016), (8, 10005635), (10, 8004508), (20, 4002254), (40, 2001127)]