220188020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{846877}}^1$

素因数の和:846899

約数の個数: 24

約数和(自身を含む): 497964264

約数和(自身を除く): 277776244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 846877, 1693754, 3387508, 4234385, 8468770, 11009401, 16937540, 22018802, 44037604, 55047005, 110094010, 220188020]

約数ペア:

[(1, 220188020), (2, 110094010), (4, 55047005), (5, 44037604), (10, 22018802), (13, 16937540), (20, 11009401), (26, 8468770), (52, 4234385), (65, 3387508), (130, 1693754), (260, 846877)]