81212656

素因数分解:

$2^4\times 7^1\times {\mathrm{725113}}^1$

素因数の和:725128

約数の個数: 20

約数和(自身を含む): 179828272

約数和(自身を除く): 98615616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 725113, 1450226, 2900452, 5075791, 5800904, 10151582, 11601808, 20303164, 40606328, 81212656]

約数ペア:

[(1, 81212656), (2, 40606328), (4, 20303164), (7, 11601808), (8, 10151582), (14, 5800904), (16, 5075791), (28, 2900452), (56, 1450226), (112, 725113)]