20590900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18719}}^1$

素因数の和:18744

約数の個数: 36

約数和(自身を含む): 48746880

約数和(自身を除く): 28155980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18719, 37438, 74876, 93595, 187190, 205909, 374380, 411818, 467975, 823636, 935950, 1029545, 1871900, 2059090, 4118180, 5147725, 10295450, 20590900]

約数ペア:

[(1, 20590900), (2, 10295450), (4, 5147725), (5, 4118180), (10, 2059090), (11, 1871900), (20, 1029545), (22, 935950), (25, 823636), (44, 467975), (50, 411818), (55, 374380), (100, 205909), (110, 187190), (220, 93595), (275, 74876), (550, 37438), (1100, 18719)]