180572020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{40487}}^1$

素因数の和:40719

約数の個数: 24

約数和(自身を含む): 380911104

約数和(自身を除く): 200339084

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 40487, 80974, 161948, 202435, 404870, 809740, 9028601, 18057202, 36114404, 45143005, 90286010, 180572020]

約数ペア:

[(1, 180572020), (2, 90286010), (4, 45143005), (5, 36114404), (10, 18057202), (20, 9028601), (223, 809740), (446, 404870), (892, 202435), (1115, 161948), (2230, 80974), (4460, 40487)]