19108840

素因数分解:

$2^3\times 5^1\times {\mathrm{477721}}^1$

素因数の和:477732

約数の個数: 16

約数和(自身を含む): 42994980

約数和(自身を除く): 23886140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 477721, 955442, 1910884, 2388605, 3821768, 4777210, 9554420, 19108840]

約数ペア:

[(1, 19108840), (2, 9554420), (4, 4777210), (5, 3821768), (8, 2388605), (10, 1910884), (20, 955442), (40, 477721)]