11909540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8387}}^1$

素因数の和:8467

約数の個数: 24

約数和(自身を含む): 25365312

約数和(自身を除く): 13455772

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8387, 16774, 33548, 41935, 83870, 167740, 595477, 1190954, 2381908, 2977385, 5954770, 11909540]

約数ペア:

[(1, 11909540), (2, 5954770), (4, 2977385), (5, 2381908), (10, 1190954), (20, 595477), (71, 167740), (142, 83870), (284, 41935), (355, 33548), (710, 16774), (1420, 8387)]