81182780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579877}}^1$

素因数の和:579893

約数の個数: 24

約数和(自身を含む): 194839008

約数和(自身を除く): 113656228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579877, 1159754, 2319508, 2899385, 4059139, 5798770, 8118278, 11597540, 16236556, 20295695, 40591390, 81182780]

約数ペア:

[(1, 81182780), (2, 40591390), (4, 20295695), (5, 16236556), (7, 11597540), (10, 8118278), (14, 5798770), (20, 4059139), (28, 2899385), (35, 2319508), (70, 1159754), (140, 579877)]