19897600

素因数分解:

$2^8\times 5^2\times {\mathrm{3109}}^1$

素因数の和:3135

約数の個数: 54

約数和(自身を含む): 49265510

約数和(自身を除く): 29367910

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3109, 3200, 6218, 6400, 12436, 15545, 24872, 31090, 49744, 62180, 77725, 99488, 124360, 155450, 198976, 248720, 310900, 397952, 497440, 621800, 795904, 994880, 1243600, 1989760, 2487200, 3979520, 4974400, 9948800, 19897600]

約数ペア:

[(1, 19897600), (2, 9948800), (4, 4974400), (5, 3979520), (8, 2487200), (10, 1989760), (16, 1243600), (20, 994880), (25, 795904), (32, 621800), (40, 497440), (50, 397952), (64, 310900), (80, 248720), (100, 198976), (128, 155450), (160, 124360), (200, 99488), (256, 77725), (320, 62180), (400, 49744), (640, 31090), (800, 24872), (1280, 15545), (1600, 12436), (3109, 6400), (3200, 6218)]