998889260

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{41039}}^1$

素因数の和:42265

約数の個数: 24

約数和(自身を含む): 2099442240

約数和(自身を除く): 1100552980

約数列:

[1, 2, 4, 5, 10, 20, 1217, 2434, 4868, 6085, 12170, 24340, 41039, 82078, 164156, 205195, 410390, 820780, 49944463, 99888926, 199777852, 249722315, 499444630, 998889260]

約数ペア:

[(1, 998889260), (2, 499444630), (4, 249722315), (5, 199777852), (10, 99888926), (20, 49944463), (1217, 820780), (2434, 410390), (4868, 205195), (6085, 164156), (12170, 82078), (24340, 41039)]