17991280

素因数分解:

$2^4\times 5^1\times {\mathrm{224891}}^1$

素因数の和:224904

約数の個数: 20

約数和(自身を含む): 41829912

約数和(自身を除く): 23838632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 224891, 449782, 899564, 1124455, 1799128, 2248910, 3598256, 4497820, 8995640, 17991280]

約数ペア:

[(1, 17991280), (2, 8995640), (4, 4497820), (5, 3598256), (8, 2248910), (10, 1799128), (16, 1124455), (20, 899564), (40, 449782), (80, 224891)]