19803740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90017}}^1$

素因数の和:90037

約数の個数: 24

約数和(自身を含む): 45369072

約数和(自身を除く): 25565332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90017, 180034, 360068, 450085, 900170, 990187, 1800340, 1980374, 3960748, 4950935, 9901870, 19803740]

約数ペア:

[(1, 19803740), (2, 9901870), (4, 4950935), (5, 3960748), (10, 1980374), (11, 1800340), (20, 990187), (22, 900170), (44, 450085), (55, 360068), (110, 180034), (220, 90017)]