81745804

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{17911}}^1$

素因数の和:18085

約数の個数: 24

約数和(自身を含む): 164503808

約数和(自身を除く): 82758004

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 17911, 35822, 71644, 125377, 250754, 501508, 2919493, 5838986, 11677972, 20436451, 40872902, 81745804]

約数ペア:

[(1, 81745804), (2, 40872902), (4, 20436451), (7, 11677972), (14, 5838986), (28, 2919493), (163, 501508), (326, 250754), (652, 125377), (1141, 71644), (2282, 35822), (4564, 17911)]