20219980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91909}}^1$

素因数の和:91929

約数の個数: 24

約数和(自身を含む): 46322640

約数和(自身を除く): 26102660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91909, 183818, 367636, 459545, 919090, 1010999, 1838180, 2021998, 4043996, 5054995, 10109990, 20219980]

約数ペア:

[(1, 20219980), (2, 10109990), (4, 5054995), (5, 4043996), (10, 2021998), (11, 1838180), (20, 1010999), (22, 919090), (44, 459545), (55, 367636), (110, 183818), (220, 91909)]