20682725

素因数分解:

$5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1619}}^1$

素因数の和:1709

約数の個数: 24

約数和(自身を含む): 29730240

約数和(自身を除く): 9047515

約数列:

[1, 5, 7, 25, 35, 73, 175, 365, 511, 1619, 1825, 2555, 8095, 11333, 12775, 40475, 56665, 118187, 283325, 590935, 827309, 2954675, 4136545, 20682725]

約数ペア:

[(1, 20682725), (5, 4136545), (7, 2954675), (25, 827309), (35, 590935), (73, 283325), (175, 118187), (365, 56665), (511, 40475), (1619, 12775), (1825, 11333), (2555, 8095)]