25807940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5021}}^1$

素因数の和:5287

約数の個数: 24

約数和(自身を含む): 54418392

約数和(自身を除く): 28610452

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5021, 5140, 10042, 20084, 25105, 50210, 100420, 1290397, 2580794, 5161588, 6451985, 12903970, 25807940]

約数ペア:

[(1, 25807940), (2, 12903970), (4, 6451985), (5, 5161588), (10, 2580794), (20, 1290397), (257, 100420), (514, 50210), (1028, 25105), (1285, 20084), (2570, 10042), (5021, 5140)]