1260800

素因数分解:

$2^8\times 5^2\times {\mathrm{197}}^1$

素因数の和:223

約数の個数: 54

約数和(自身を含む): 3136518

約数和(自身を除く): 1875718

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 197, 200, 256, 320, 394, 400, 640, 788, 800, 985, 1280, 1576, 1600, 1970, 3152, 3200, 3940, 4925, 6304, 6400, 7880, 9850, 12608, 15760, 19700, 25216, 31520, 39400, 50432, 63040, 78800, 126080, 157600, 252160, 315200, 630400, 1260800]

約数ペア:

[(1, 1260800), (2, 630400), (4, 315200), (5, 252160), (8, 157600), (10, 126080), (16, 78800), (20, 63040), (25, 50432), (32, 39400), (40, 31520), (50, 25216), (64, 19700), (80, 15760), (100, 12608), (128, 9850), (160, 7880), (197, 6400), (200, 6304), (256, 4925), (320, 3940), (394, 3200), (400, 3152), (640, 1970), (788, 1600), (800, 1576), (985, 1280)]