221586280

素因数分解:

$2^3\times 5^1\times {\mathrm{5539657}}^1$

素因数の和:5539668

約数の個数: 16

約数和(自身を含む): 498569220

約数和(自身を除く): 276982940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5539657, 11079314, 22158628, 27698285, 44317256, 55396570, 110793140, 221586280]

約数ペア:

[(1, 221586280), (2, 110793140), (4, 55396570), (5, 44317256), (8, 27698285), (10, 22158628), (20, 11079314), (40, 5539657)]