63990400

素因数分解:

$2^7\times 5^2\times {\mathrm{19997}}^1$

素因数の和:20021

約数の個数: 48

約数和(自身を含む): 158084190

約数和(自身を除く): 94093790

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, 19997, 39994, 79988, 99985, 159976, 199970, 319952, 399940, 499925, 639904, 799880, 999850, 1279808, 1599760, 1999700, 2559616, 3199520, 3999400, 6399040, 7998800, 12798080, 15997600, 31995200, 63990400]

約数ペア:

[(1, 63990400), (2, 31995200), (4, 15997600), (5, 12798080), (8, 7998800), (10, 6399040), (16, 3999400), (20, 3199520), (25, 2559616), (32, 1999700), (40, 1599760), (50, 1279808), (64, 999850), (80, 799880), (100, 639904), (128, 499925), (160, 399940), (200, 319952), (320, 199970), (400, 159976), (640, 99985), (800, 79988), (1600, 39994), (3200, 19997)]