18872080

素因数分解:

$2^4\times 5^1\times {\mathrm{235901}}^1$

素因数の和:235914

約数の個数: 20

約数和(自身を含む): 43877772

約数和(自身を除く): 25005692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235901, 471802, 943604, 1179505, 1887208, 2359010, 3774416, 4718020, 9436040, 18872080]

約数ペア:

[(1, 18872080), (2, 9436040), (4, 4718020), (5, 3774416), (8, 2359010), (10, 1887208), (16, 1179505), (20, 943604), (40, 471802), (80, 235901)]