27445000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 70290000

約数和(自身を除く): 42845000

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, 625, 998, 1000, 1100, 1250, 1375, 1996, 2200, 2495, 2500, 2750, 3992, 4990, 5000, 5489, 5500, 6875, 9980, 10978, 11000, 12475, 13750, 19960, 21956, 24950, 27445, 27500, 43912, 49900, 54890, 55000, 62375, 99800, 109780, 124750, 137225, 219560, 249500, 274450, 311875, 499000, 548900, 623750, 686125, 1097800, 1247500, 1372250, 2495000, 2744500, 3430625, 5489000, 6861250, 13722500, 27445000]

約数ペア:

[(1, 27445000), (2, 13722500), (4, 6861250), (5, 5489000), (8, 3430625), (10, 2744500), (11, 2495000), (20, 1372250), (22, 1247500), (25, 1097800), (40, 686125), (44, 623750), (50, 548900), (55, 499000), (88, 311875), (100, 274450), (110, 249500), (125, 219560), (200, 137225), (220, 124750), (250, 109780), (275, 99800), (440, 62375), (499, 55000), (500, 54890), (550, 49900), (625, 43912), (998, 27500), (1000, 27445), (1100, 24950), (1250, 21956), (1375, 19960), (1996, 13750), (2200, 12475), (2495, 11000), (2500, 10978), (2750, 9980), (3992, 6875), (4990, 5500), (5000, 5489)]