40001258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{25609}}^1$

素因数の和:25693

約数の個数: 16

約数和(自身を含む): 66381120

約数和(自身を除く): 26379862

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 25609, 51218, 281699, 563398, 1818239, 3636478, 20000629, 40001258]

約数ペア:

[(1, 40001258), (2, 20000629), (11, 3636478), (22, 1818239), (71, 563398), (142, 281699), (781, 51218), (1562, 25609)]