19224440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11177}}^1$

素因数の和:11231

約数の個数: 32

約数和(自身を含む): 44264880

約数和(自身を除く): 25040440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11177, 22354, 44708, 55885, 89416, 111770, 223540, 447080, 480611, 961222, 1922444, 2403055, 3844888, 4806110, 9612220, 19224440]

約数ペア:

[(1, 19224440), (2, 9612220), (4, 4806110), (5, 3844888), (8, 2403055), (10, 1922444), (20, 961222), (40, 480611), (43, 447080), (86, 223540), (172, 111770), (215, 89416), (344, 55885), (430, 44708), (860, 22354), (1720, 11177)]