210840260

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{76949}}^1$

素因数の和:77095

約数の個数: 24

約数和(自身を含む): 446002200

約数和(自身を除く): 235161940

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 76949, 153898, 307796, 384745, 769490, 1538980, 10542013, 21084026, 42168052, 52710065, 105420130, 210840260]

約数ペア:

[(1, 210840260), (2, 105420130), (4, 52710065), (5, 42168052), (10, 21084026), (20, 10542013), (137, 1538980), (274, 769490), (548, 384745), (685, 307796), (1370, 153898), (2740, 76949)]