81390316

素因数分解:

$2^2\times 7^1\times {\mathrm{919}}^1\times {\mathrm{3163}}^1$

素因数の和:4093

約数の個数: 24

約数和(自身を含む): 163009280

約数和(自身を除く): 81618964

約数列:

[1, 2, 4, 7, 14, 28, 919, 1838, 3163, 3676, 6326, 6433, 12652, 12866, 22141, 25732, 44282, 88564, 2906797, 5813594, 11627188, 20347579, 40695158, 81390316]

約数ペア:

[(1, 81390316), (2, 40695158), (4, 20347579), (7, 11627188), (14, 5813594), (28, 2906797), (919, 88564), (1838, 44282), (3163, 25732), (3676, 22141), (6326, 12866), (6433, 12652)]