4247020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 8992368

約数和(自身を除く): 4745348

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 1621, 2620, 3242, 6484, 8105, 16210, 32420, 212351, 424702, 849404, 1061755, 2123510, 4247020]

約数ペア:

[(1, 4247020), (2, 2123510), (4, 1061755), (5, 849404), (10, 424702), (20, 212351), (131, 32420), (262, 16210), (524, 8105), (655, 6484), (1310, 3242), (1621, 2620)]