216468080

素因数分解:

$2^4\times 5^1\times {\mathrm{2705851}}^1$

素因数の和:2705864

約数の個数: 20

約数和(自身を含む): 503288472

約数和(自身を除く): 286820392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2705851, 5411702, 10823404, 13529255, 21646808, 27058510, 43293616, 54117020, 108234040, 216468080]

約数ペア:

[(1, 216468080), (2, 108234040), (4, 54117020), (5, 43293616), (8, 27058510), (10, 21646808), (16, 13529255), (20, 10823404), (40, 5411702), (80, 2705851)]