205403728

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{81769}}^1$

素因数の和:81934

約数の個数: 20

約数和(自身を含む): 400509460

約数和(自身を除く): 195105732

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 81769, 163538, 327076, 654152, 1308304, 12837733, 25675466, 51350932, 102701864, 205403728]

約数ペア:

[(1, 205403728), (2, 102701864), (4, 51350932), (8, 25675466), (16, 12837733), (157, 1308304), (314, 654152), (628, 327076), (1256, 163538), (2512, 81769)]