638291204

素因数分解:

$2^2\times {\mathrm{35851}}^1\times {\mathrm{4451}}^1$

素因数の和:40306

約数の個数: 12

約数和(自身を含む): 1117291728

約数和(自身を除く): 479000524

約数列:

[1, 2, 4, 4451, 8902, 17804, 35851, 71702, 143404, 159572801, 319145602, 638291204]

約数ペア:

[(1, 638291204), (2, 319145602), (4, 159572801), (4451, 143404), (8902, 71702), (17804, 35851)]