27447760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 66781440

約数和(自身を除く): 39333680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 79, 80, 86, 101, 158, 172, 202, 215, 316, 344, 395, 404, 430, 505, 632, 688, 790, 808, 860, 1010, 1264, 1580, 1616, 1720, 2020, 3160, 3397, 3440, 4040, 4343, 6320, 6794, 7979, 8080, 8686, 13588, 15958, 16985, 17372, 21715, 27176, 31916, 33970, 34744, 39895, 43430, 54352, 63832, 67940, 69488, 79790, 86860, 127664, 135880, 159580, 173720, 271760, 319160, 343097, 347440, 638320, 686194, 1372388, 1715485, 2744776, 3430970, 5489552, 6861940, 13723880, 27447760]

約数ペア:

[(1, 27447760), (2, 13723880), (4, 6861940), (5, 5489552), (8, 3430970), (10, 2744776), (16, 1715485), (20, 1372388), (40, 686194), (43, 638320), (79, 347440), (80, 343097), (86, 319160), (101, 271760), (158, 173720), (172, 159580), (202, 135880), (215, 127664), (316, 86860), (344, 79790), (395, 69488), (404, 67940), (430, 63832), (505, 54352), (632, 43430), (688, 39895), (790, 34744), (808, 33970), (860, 31916), (1010, 27176), (1264, 21715), (1580, 17372), (1616, 16985), (1720, 15958), (2020, 13588), (3160, 8686), (3397, 8080), (3440, 7979), (4040, 6794), (4343, 6320)]