89490280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{203387}}^1$

素因数の和:203409

約数の個数: 32

約数和(自身を含む): 219659040

約数和(自身を除く): 130168760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 203387, 406774, 813548, 1016935, 1627096, 2033870, 2237257, 4067740, 4474514, 8135480, 8949028, 11186285, 17898056, 22372570, 44745140, 89490280]

約数ペア:

[(1, 89490280), (2, 44745140), (4, 22372570), (5, 17898056), (8, 11186285), (10, 8949028), (11, 8135480), (20, 4474514), (22, 4067740), (40, 2237257), (44, 2033870), (55, 1627096), (88, 1016935), (110, 813548), (220, 406774), (440, 203387)]