6480080

素因数分解:

$2^4\times 5^1\times {\mathrm{81001}}^1$

素因数の和:81014

約数の個数: 20

約数和(自身を含む): 15066372

約数和(自身を除く): 8586292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 81001, 162002, 324004, 405005, 648008, 810010, 1296016, 1620020, 3240040, 6480080]

約数ペア:

[(1, 6480080), (2, 3240040), (4, 1620020), (5, 1296016), (8, 810010), (10, 648008), (16, 405005), (20, 324004), (40, 162002), (80, 81001)]