17708740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{126491}}^1$

素因数の和:126507

約数の個数: 24

約数和(自身を含む): 42501312

約数和(自身を除く): 24792572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 126491, 252982, 505964, 632455, 885437, 1264910, 1770874, 2529820, 3541748, 4427185, 8854370, 17708740]

約数ペア:

[(1, 17708740), (2, 8854370), (4, 4427185), (5, 3541748), (7, 2529820), (10, 1770874), (14, 1264910), (20, 885437), (28, 632455), (35, 505964), (70, 252982), (140, 126491)]