9891460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5557}}^1$

素因数の和:5655

約数の個数: 24

約数和(自身を含む): 21009240

約数和(自身を除く): 11117780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 5557, 11114, 22228, 27785, 55570, 111140, 494573, 989146, 1978292, 2472865, 4945730, 9891460]

約数ペア:

[(1, 9891460), (2, 4945730), (4, 2472865), (5, 1978292), (10, 989146), (20, 494573), (89, 111140), (178, 55570), (356, 27785), (445, 22228), (890, 11114), (1780, 5557)]