18080080

素因数分解:

$2^4\times 5^1\times {\mathrm{226001}}^1$

素因数の和:226014

約数の個数: 20

約数和(自身を含む): 42036372

約数和(自身を除く): 23956292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226001, 452002, 904004, 1130005, 1808008, 2260010, 3616016, 4520020, 9040040, 18080080]

約数ペア:

[(1, 18080080), (2, 9040040), (4, 4520020), (5, 3616016), (8, 2260010), (10, 1808008), (16, 1130005), (20, 904004), (40, 452002), (80, 226001)]