81228310

素因数分解:

$2^1\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{5011}}^1$

素因数の和:6639

約数の個数: 16

約数和(自身を含む): 146330352

約数和(自身を除く): 65102042

約数列:

[1, 2, 5, 10, 1621, 3242, 5011, 8105, 10022, 16210, 25055, 50110, 8122831, 16245662, 40614155, 81228310]

約数ペア:

[(1, 81228310), (2, 40614155), (5, 16245662), (10, 8122831), (1621, 50110), (3242, 25055), (5011, 16210), (8105, 10022)]