320420518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{393637}}^1$

素因数の和:393687

約数の個数: 16

約数和(自身を含む): 538496784

約数和(自身を除く): 218076266

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 393637, 787274, 4330007, 8660014, 14564569, 29129138, 160210259, 320420518]

約数ペア:

[(1, 320420518), (2, 160210259), (11, 29129138), (22, 14564569), (37, 8660014), (74, 4330007), (407, 787274), (814, 393637)]