20850280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47387}}^1$

素因数の和:47409

約数の個数: 32

約数和(自身を含む): 51179040

約数和(自身を除く): 30328760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47387, 94774, 189548, 236935, 379096, 473870, 521257, 947740, 1042514, 1895480, 2085028, 2606285, 4170056, 5212570, 10425140, 20850280]

約数ペア:

[(1, 20850280), (2, 10425140), (4, 5212570), (5, 4170056), (8, 2606285), (10, 2085028), (11, 1895480), (20, 1042514), (22, 947740), (40, 521257), (44, 473870), (55, 379096), (88, 236935), (110, 189548), (220, 94774), (440, 47387)]