8810020

素因数分解:

$2^2\times 5^1\times {\mathrm{440501}}^1$

素因数の和:440510

約数の個数: 12

約数和(自身を含む): 18501084

約数和(自身を除く): 9691064

約数列:

[1, 2, 4, 5, 10, 20, 440501, 881002, 1762004, 2202505, 4405010, 8810020]

約数ペア:

[(1, 8810020), (2, 4405010), (4, 2202505), (5, 1762004), (10, 881002), (20, 440501)]