208291520

素因数分解:

$2^6\times 5^1\times {\mathrm{650911}}^1$

素因数の和:650928

約数の個数: 28

約数和(自身を含む): 495994944

約数和(自身を除く): 287703424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 650911, 1301822, 2603644, 3254555, 5207288, 6509110, 10414576, 13018220, 20829152, 26036440, 41658304, 52072880, 104145760, 208291520]

約数ペア:

[(1, 208291520), (2, 104145760), (4, 52072880), (5, 41658304), (8, 26036440), (10, 20829152), (16, 13018220), (20, 10414576), (32, 6509110), (40, 5207288), (64, 3254555), (80, 2603644), (160, 1301822), (320, 650911)]