18221900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{3877}}^1$

素因数の和:3938

約数の個数: 36

約数和(自身を含む): 40393248

約数和(自身を除く): 22171348

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2350, 3877, 4700, 7754, 15508, 19385, 38770, 77540, 96925, 182219, 193850, 364438, 387700, 728876, 911095, 1822190, 3644380, 4555475, 9110950, 18221900]

約数ペア:

[(1, 18221900), (2, 9110950), (4, 4555475), (5, 3644380), (10, 1822190), (20, 911095), (25, 728876), (47, 387700), (50, 364438), (94, 193850), (100, 182219), (188, 96925), (235, 77540), (470, 38770), (940, 19385), (1175, 15508), (2350, 7754), (3877, 4700)]