90840260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648859}}^1$

素因数の和:648875

約数の個数: 24

約数和(自身を含む): 218016960

約数和(自身を除く): 127176700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648859, 1297718, 2595436, 3244295, 4542013, 6488590, 9084026, 12977180, 18168052, 22710065, 45420130, 90840260]

約数ペア:

[(1, 90840260), (2, 45420130), (4, 22710065), (5, 18168052), (7, 12977180), (10, 9084026), (14, 6488590), (20, 4542013), (28, 3244295), (35, 2595436), (70, 1297718), (140, 648859)]