1811140

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 3836952

約数和(自身を除く): 2025812

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 661, 685, 1322, 1370, 2644, 2740, 3305, 6610, 13220, 90557, 181114, 362228, 452785, 905570, 1811140]

約数ペア:

[(1, 1811140), (2, 905570), (4, 452785), (5, 362228), (10, 181114), (20, 90557), (137, 13220), (274, 6610), (548, 3305), (661, 2740), (685, 2644), (1322, 1370)]