12915200

素因数分解:

$2^9\times 5^2\times {\mathrm{1009}}^1$

素因数の和:1037

約数の個数: 60

約数和(自身を含む): 32030130

約数和(自身を除く): 19114930

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1009, 1280, 1600, 2018, 2560, 3200, 4036, 5045, 6400, 8072, 10090, 12800, 16144, 20180, 25225, 32288, 40360, 50450, 64576, 80720, 100900, 129152, 161440, 201800, 258304, 322880, 403600, 516608, 645760, 807200, 1291520, 1614400, 2583040, 3228800, 6457600, 12915200]

約数ペア:

[(1, 12915200), (2, 6457600), (4, 3228800), (5, 2583040), (8, 1614400), (10, 1291520), (16, 807200), (20, 645760), (25, 516608), (32, 403600), (40, 322880), (50, 258304), (64, 201800), (80, 161440), (100, 129152), (128, 100900), (160, 80720), (200, 64576), (256, 50450), (320, 40360), (400, 32288), (512, 25225), (640, 20180), (800, 16144), (1009, 12800), (1280, 10090), (1600, 8072), (2018, 6400), (2560, 5045), (3200, 4036)]