18840890

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{40087}}^1$

素因数の和:40141

約数の個数: 16

約数和(自身を含む): 34636032

約数和(自身を除く): 15795142

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 40087, 80174, 200435, 400870, 1884089, 3768178, 9420445, 18840890]

約数ペア:

[(1, 18840890), (2, 9420445), (5, 3768178), (10, 1884089), (47, 400870), (94, 200435), (235, 80174), (470, 40087)]