218417780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1560127}}^1$

素因数の和:1560143

約数の個数: 24

約数和(自身を含む): 524203008

約数和(自身を除く): 305785228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1560127, 3120254, 6240508, 7800635, 10920889, 15601270, 21841778, 31202540, 43683556, 54604445, 109208890, 218417780]

約数ペア:

[(1, 218417780), (2, 109208890), (4, 54604445), (5, 43683556), (7, 31202540), (10, 21841778), (14, 15601270), (20, 10920889), (28, 7800635), (35, 6240508), (70, 3120254), (140, 1560127)]