18139880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41227}}^1$

素因数の和:41249

約数の個数: 32

約数和(自身を含む): 44526240

約数和(自身を除く): 26386360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41227, 82454, 164908, 206135, 329816, 412270, 453497, 824540, 906994, 1649080, 1813988, 2267485, 3627976, 4534970, 9069940, 18139880]

約数ペア:

[(1, 18139880), (2, 9069940), (4, 4534970), (5, 3627976), (8, 2267485), (10, 1813988), (11, 1649080), (20, 906994), (22, 824540), (40, 453497), (44, 412270), (55, 329816), (88, 206135), (110, 164908), (220, 82454), (440, 41227)]