420912080

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{17957}}^1$

素因数の和:18263

約数の個数: 40

約数和(自身を含む): 982015272

約数和(自身を除く): 561103192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 1172, 1465, 2344, 2930, 4688, 5860, 11720, 17957, 23440, 35914, 71828, 89785, 143656, 179570, 287312, 359140, 718280, 1436560, 5261401, 10522802, 21045604, 26307005, 42091208, 52614010, 84182416, 105228020, 210456040, 420912080]

約数ペア:

[(1, 420912080), (2, 210456040), (4, 105228020), (5, 84182416), (8, 52614010), (10, 42091208), (16, 26307005), (20, 21045604), (40, 10522802), (80, 5261401), (293, 1436560), (586, 718280), (1172, 359140), (1465, 287312), (2344, 179570), (2930, 143656), (4688, 89785), (5860, 71828), (11720, 35914), (17957, 23440)]