8640520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{30859}}^1$

素因数の和:30877

約数の個数: 32

約数和(自身を含む): 22219200

約数和(自身を除く): 13578680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 30859, 61718, 123436, 154295, 216013, 246872, 308590, 432026, 617180, 864052, 1080065, 1234360, 1728104, 2160130, 4320260, 8640520]

約数ペア:

[(1, 8640520), (2, 4320260), (4, 2160130), (5, 1728104), (7, 1234360), (8, 1080065), (10, 864052), (14, 617180), (20, 432026), (28, 308590), (35, 246872), (40, 216013), (56, 154295), (70, 123436), (140, 61718), (280, 30859)]