2640260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{18859}}^1$

素因数の和:18875

約数の個数: 24

約数和(自身を含む): 6336960

約数和(自身を除く): 3696700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 18859, 37718, 75436, 94295, 132013, 188590, 264026, 377180, 528052, 660065, 1320130, 2640260]

約数ペア:

[(1, 2640260), (2, 1320130), (4, 660065), (5, 528052), (7, 377180), (10, 264026), (14, 188590), (20, 132013), (28, 94295), (35, 75436), (70, 37718), (140, 18859)]