5247940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 11074392

約数和(自身を除く): 5826452

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1021, 1028, 1285, 2042, 2570, 4084, 5105, 5140, 10210, 20420, 262397, 524794, 1049588, 1311985, 2623970, 5247940]

約数ペア:

[(1, 5247940), (2, 2623970), (4, 1311985), (5, 1049588), (10, 524794), (20, 262397), (257, 20420), (514, 10210), (1021, 5140), (1028, 5105), (1285, 4084), (2042, 2570)]