18117880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41177}}^1$

素因数の和:41199

約数の個数: 32

約数和(自身を含む): 44472240

約数和(自身を除く): 26354360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41177, 82354, 164708, 205885, 329416, 411770, 452947, 823540, 905894, 1647080, 1811788, 2264735, 3623576, 4529470, 9058940, 18117880]

約数ペア:

[(1, 18117880), (2, 9058940), (4, 4529470), (5, 3623576), (8, 2264735), (10, 1811788), (11, 1647080), (20, 905894), (22, 823540), (40, 452947), (44, 411770), (55, 329416), (88, 205885), (110, 164708), (220, 82354), (440, 41177)]