565578040

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{21391}}^1$

素因数の和:22063

約数の個数: 32

約数和(自身を含む): 1274535360

約数和(自身を除く): 708957320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 21391, 26440, 42782, 85564, 106955, 171128, 213910, 427820, 855640, 14139451, 28278902, 56557804, 70697255, 113115608, 141394510, 282789020, 565578040]

約数ペア:

[(1, 565578040), (2, 282789020), (4, 141394510), (5, 113115608), (8, 70697255), (10, 56557804), (20, 28278902), (40, 14139451), (661, 855640), (1322, 427820), (2644, 213910), (3305, 171128), (5288, 106955), (6610, 85564), (13220, 42782), (21391, 26440)]