213886550

素因数分解:

$2^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{10459}}^1$

素因数の和:10880

約数の個数: 24

約数和(自身を含む): 398839800

約数和(自身を除く): 184953250

約数列:

[1, 2, 5, 10, 25, 50, 409, 818, 2045, 4090, 10225, 10459, 20450, 20918, 52295, 104590, 261475, 522950, 4277731, 8555462, 21388655, 42777310, 106943275, 213886550]

約数ペア:

[(1, 213886550), (2, 106943275), (5, 42777310), (10, 21388655), (25, 8555462), (50, 4277731), (409, 522950), (818, 261475), (2045, 104590), (4090, 52295), (10225, 20918), (10459, 20450)]