18009440

素因数分解:

$2^5\times 5^1\times {\mathrm{112559}}^1$

素因数の和:112574

約数の個数: 24

約数和(自身を含む): 42547680

約数和(自身を除く): 24538240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 112559, 225118, 450236, 562795, 900472, 1125590, 1800944, 2251180, 3601888, 4502360, 9004720, 18009440]

約数ペア:

[(1, 18009440), (2, 9004720), (4, 4502360), (5, 3601888), (8, 2251180), (10, 1800944), (16, 1125590), (20, 900472), (32, 562795), (40, 450236), (80, 225118), (160, 112559)]