71916620

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{8117}}^1$

素因数の和:8569

約数の個数: 24

約数和(自身を含む): 151384464

約数和(自身を除く): 79467844

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8117, 8860, 16234, 32468, 40585, 81170, 162340, 3595831, 7191662, 14383324, 17979155, 35958310, 71916620]

約数ペア:

[(1, 71916620), (2, 35958310), (4, 17979155), (5, 14383324), (10, 7191662), (20, 3595831), (443, 162340), (886, 81170), (1772, 40585), (2215, 32468), (4430, 16234), (8117, 8860)]