18318880

素因数分解:

$2^5\times 5^1\times {\mathrm{114493}}^1$

素因数の和:114508

約数の個数: 24

約数和(自身を含む): 43278732

約数和(自身を除く): 24959852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 114493, 228986, 457972, 572465, 915944, 1144930, 1831888, 2289860, 3663776, 4579720, 9159440, 18318880]

約数ペア:

[(1, 18318880), (2, 9159440), (4, 4579720), (5, 3663776), (8, 2289860), (10, 1831888), (16, 1144930), (20, 915944), (32, 572465), (40, 457972), (80, 228986), (160, 114493)]