128568580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{918347}}^1$

素因数の和:918363

約数の個数: 24

約数和(自身を含む): 308564928

約数和(自身を除く): 179996348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 918347, 1836694, 3673388, 4591735, 6428429, 9183470, 12856858, 18366940, 25713716, 32142145, 64284290, 128568580]

約数ペア:

[(1, 128568580), (2, 64284290), (4, 32142145), (5, 25713716), (7, 18366940), (10, 12856858), (14, 9183470), (20, 6428429), (28, 4591735), (35, 3673388), (70, 1836694), (140, 918347)]