1820080

素因数分解:

$2^4\times 5^1\times {\mathrm{22751}}^1$

素因数の和:22764

約数の個数: 20

約数和(自身を含む): 4231872

約数和(自身を除く): 2411792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22751, 45502, 91004, 113755, 182008, 227510, 364016, 455020, 910040, 1820080]

約数ペア:

[(1, 1820080), (2, 910040), (4, 455020), (5, 364016), (8, 227510), (10, 182008), (16, 113755), (20, 91004), (40, 45502), (80, 22751)]