5489000

素因数分解:

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

素因数の和:531

約数の個数: 64

約数和(自身を含む): 14040000

約数和(自身を除く): 8551000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 499, 500, 550, 998, 1000, 1100, 1375, 1996, 2200, 2495, 2750, 3992, 4990, 5489, 5500, 9980, 10978, 11000, 12475, 19960, 21956, 24950, 27445, 43912, 49900, 54890, 62375, 99800, 109780, 124750, 137225, 219560, 249500, 274450, 499000, 548900, 686125, 1097800, 1372250, 2744500, 5489000]

約数ペア:

[(1, 5489000), (2, 2744500), (4, 1372250), (5, 1097800), (8, 686125), (10, 548900), (11, 499000), (20, 274450), (22, 249500), (25, 219560), (40, 137225), (44, 124750), (50, 109780), (55, 99800), (88, 62375), (100, 54890), (110, 49900), (125, 43912), (200, 27445), (220, 24950), (250, 21956), (275, 19960), (440, 12475), (499, 11000), (500, 10978), (550, 9980), (998, 5500), (1000, 5489), (1100, 4990), (1375, 3992), (1996, 2750), (2200, 2495)]