1097800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 2790000

約数和(自身を除く): 1692200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 499, 550, 998, 1100, 1996, 2200, 2495, 3992, 4990, 5489, 9980, 10978, 12475, 19960, 21956, 24950, 27445, 43912, 49900, 54890, 99800, 109780, 137225, 219560, 274450, 548900, 1097800]

約数ペア:

[(1, 1097800), (2, 548900), (4, 274450), (5, 219560), (8, 137225), (10, 109780), (11, 99800), (20, 54890), (22, 49900), (25, 43912), (40, 27445), (44, 24950), (50, 21956), (55, 19960), (88, 12475), (100, 10978), (110, 9980), (200, 5489), (220, 4990), (275, 3992), (440, 2495), (499, 2200), (550, 1996), (998, 1100)]