213795520

素因数分解:

$2^6\times 5^1\times {\mathrm{668111}}^1$

素因数の和:668128

約数の個数: 28

約数和(自身を含む): 509101344

約数和(自身を除く): 295305824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 668111, 1336222, 2672444, 3340555, 5344888, 6681110, 10689776, 13362220, 21379552, 26724440, 42759104, 53448880, 106897760, 213795520]

約数ペア:

[(1, 213795520), (2, 106897760), (4, 53448880), (5, 42759104), (8, 26724440), (10, 21379552), (16, 13362220), (20, 10689776), (32, 6681110), (40, 5344888), (64, 3340555), (80, 2672444), (160, 1336222), (320, 668111)]