66611620

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{18401}}^1$

素因数の和:18591

約数の個数: 24

約数和(自身を含む): 140664888

約数和(自身を除く): 74053268

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 18401, 36802, 73604, 92005, 184010, 368020, 3330581, 6661162, 13322324, 16652905, 33305810, 66611620]

約数ペア:

[(1, 66611620), (2, 33305810), (4, 16652905), (5, 13322324), (10, 6661162), (20, 3330581), (181, 368020), (362, 184010), (724, 92005), (905, 73604), (1810, 36802), (3620, 18401)]