99990400

素因数分解:

$2^7\times 5^2\times {\mathrm{31247}}^1$

素因数の和:31271

約数の個数: 48

約数和(自身を含む): 247015440

約数和(自身を除く): 147025040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 31247, 62494, 124988, 156235, 249976, 312470, 499952, 624940, 781175, 999904, 1249880, 1562350, 1999808, 2499760, 3124700, 3999616, 4999520, 6249400, 9999040, 12498800, 19998080, 24997600, 49995200, 99990400]

約数ペア:

[(1, 99990400), (2, 49995200), (4, 24997600), (5, 19998080), (8, 12498800), (10, 9999040), (16, 6249400), (20, 4999520), (25, 3999616), (32, 3124700), (40, 2499760), (50, 1999808), (64, 1562350), (80, 1249880), (100, 999904), (128, 781175), (160, 624940), (200, 499952), (320, 312470), (400, 249976), (640, 156235), (800, 124988), (1600, 62494), (3200, 31247)]