40040080

素因数分解:

$2^4\times 5^1\times {\mathrm{500501}}^1$

素因数の和:500514

約数の個数: 20

約数和(自身を含む): 93093372

約数和(自身を除く): 53053292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500501, 1001002, 2002004, 2502505, 4004008, 5005010, 8008016, 10010020, 20020040, 40040080]

約数ペア:

[(1, 40040080), (2, 20020040), (4, 10010020), (5, 8008016), (8, 5005010), (10, 4004008), (16, 2502505), (20, 2002004), (40, 1001002), (80, 500501)]