2170780

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{349}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4586400

約数和(自身を除く): 2415620

約数列:

[1, 2, 4, 5, 10, 20, 311, 349, 622, 698, 1244, 1396, 1555, 1745, 3110, 3490, 6220, 6980, 108539, 217078, 434156, 542695, 1085390, 2170780]

約数ペア:

[(1, 2170780), (2, 1085390), (4, 542695), (5, 434156), (10, 217078), (20, 108539), (311, 6980), (349, 6220), (622, 3490), (698, 3110), (1244, 1745), (1396, 1555)]