8040080

素因数分解:

$2^4\times 5^1\times {\mathrm{100501}}^1$

素因数の和:100514

約数の個数: 20

約数和(自身を含む): 18693372

約数和(自身を除く): 10653292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100501, 201002, 402004, 502505, 804008, 1005010, 1608016, 2010020, 4020040, 8040080]

約数ペア:

[(1, 8040080), (2, 4020040), (4, 2010020), (5, 1608016), (8, 1005010), (10, 804008), (16, 502505), (20, 402004), (40, 201002), (80, 100501)]