161760781

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 206841600

約数和(自身を除く): 45080819

約数列:

[1, 7, 13, 37, 91, 107, 259, 449, 481, 749, 1391, 3143, 3367, 3959, 5837, 9737, 16613, 27713, 40859, 48043, 51467, 116291, 215969, 336301, 360269, 624559, 1511783, 1777591, 4371913, 12443137, 23108683, 161760781]

約数ペア:

[(1, 161760781), (7, 23108683), (13, 12443137), (37, 4371913), (91, 1777591), (107, 1511783), (259, 624559), (449, 360269), (481, 336301), (749, 215969), (1391, 116291), (3143, 51467), (3367, 48043), (3959, 40859), (5837, 27713), (9737, 16613)]