80019010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{89909}}^1$

素因数の和:90005

約数の個数: 16

約数和(自身を含む): 145654200

約数和(自身を除く): 65635190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 89909, 179818, 449545, 899090, 8001901, 16003802, 40009505, 80019010]

約数ペア:

[(1, 80019010), (2, 40009505), (5, 16003802), (10, 8001901), (89, 899090), (178, 449545), (445, 179818), (890, 89909)]