21956000

素因数分解:

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

素因数の和:535

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 37012000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 352, 400, 440, 499, 500, 550, 800, 880, 998, 1000, 1100, 1375, 1760, 1996, 2000, 2200, 2495, 2750, 3992, 4000, 4400, 4990, 5489, 5500, 7984, 8800, 9980, 10978, 11000, 12475, 15968, 19960, 21956, 22000, 24950, 27445, 39920, 43912, 44000, 49900, 54890, 62375, 79840, 87824, 99800, 109780, 124750, 137225, 175648, 199600, 219560, 249500, 274450, 399200, 439120, 499000, 548900, 686125, 878240, 998000, 1097800, 1372250, 1996000, 2195600, 2744500, 4391200, 5489000, 10978000, 21956000]

約数ペア:

[(1, 21956000), (2, 10978000), (4, 5489000), (5, 4391200), (8, 2744500), (10, 2195600), (11, 1996000), (16, 1372250), (20, 1097800), (22, 998000), (25, 878240), (32, 686125), (40, 548900), (44, 499000), (50, 439120), (55, 399200), (80, 274450), (88, 249500), (100, 219560), (110, 199600), (125, 175648), (160, 137225), (176, 124750), (200, 109780), (220, 99800), (250, 87824), (275, 79840), (352, 62375), (400, 54890), (440, 49900), (499, 44000), (500, 43912), (550, 39920), (800, 27445), (880, 24950), (998, 22000), (1000, 21956), (1100, 19960), (1375, 15968), (1760, 12475), (1996, 11000), (2000, 10978), (2200, 9980), (2495, 8800), (2750, 7984), (3992, 5500), (4000, 5489), (4400, 4990)]