131941640

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{2579}}^1$

素因数の和:3869

約数の個数: 32

約数和(自身を含む): 297216000

約数和(自身を除く): 165274360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 2558, 2579, 5116, 5158, 6395, 10232, 10316, 12790, 12895, 20632, 25580, 25790, 51160, 51580, 103160, 3298541, 6597082, 13194164, 16492705, 26388328, 32985410, 65970820, 131941640]

約数ペア:

[(1, 131941640), (2, 65970820), (4, 32985410), (5, 26388328), (8, 16492705), (10, 13194164), (20, 6597082), (40, 3298541), (1279, 103160), (2558, 51580), (2579, 51160), (5116, 25790), (5158, 25580), (6395, 20632), (10232, 12895), (10316, 12790)]