22280840

素因数分解:

$2^3\times 5^1\times {\mathrm{557021}}^1$

素因数の和:557032

約数の個数: 16

約数和(自身を含む): 50131980

約数和(自身を除く): 27851140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557021, 1114042, 2228084, 2785105, 4456168, 5570210, 11140420, 22280840]

約数ペア:

[(1, 22280840), (2, 11140420), (4, 5570210), (5, 4456168), (8, 2785105), (10, 2228084), (20, 1114042), (40, 557021)]