128781142

素因数分解:

$2^1\times 7^1\times {\mathrm{1609}}^1\times {\mathrm{5717}}^1$

素因数の和:7335

約数の個数: 16

約数和(自身を含む): 220943520

約数和(自身を除く): 92162378

約数列:

[1, 2, 7, 14, 1609, 3218, 5717, 11263, 11434, 22526, 40019, 80038, 9198653, 18397306, 64390571, 128781142]

約数ペア:

[(1, 128781142), (2, 64390571), (7, 18397306), (14, 9198653), (1609, 80038), (3218, 40019), (5717, 22526), (11263, 11434)]