208206860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{242101}}^1$

素因数の和:242153

約数の個数: 24

約数和(自身を含む): 447404496

約数和(自身を除く): 239197636

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 242101, 484202, 968404, 1210505, 2421010, 4842020, 10410343, 20820686, 41641372, 52051715, 104103430, 208206860]

約数ペア:

[(1, 208206860), (2, 104103430), (4, 52051715), (5, 41641372), (10, 20820686), (20, 10410343), (43, 4842020), (86, 2421010), (172, 1210505), (215, 968404), (430, 484202), (860, 242101)]