20981180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95369}}^1$

素因数の和:95389

約数の個数: 24

約数和(自身を含む): 48066480

約数和(自身を除く): 27085300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95369, 190738, 381476, 476845, 953690, 1049059, 1907380, 2098118, 4196236, 5245295, 10490590, 20981180]

約数ペア:

[(1, 20981180), (2, 10490590), (4, 5245295), (5, 4196236), (10, 2098118), (11, 1907380), (20, 1049059), (22, 953690), (44, 476845), (55, 381476), (110, 190738), (220, 95369)]