1900201820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{200867}}^1$

素因数の和:200930

約数の個数: 48

約数和(自身を含む): 4454448768

約数和(自身を除く): 2554246948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 200867, 401734, 803468, 1004335, 2008670, 2209537, 4017340, 4419074, 8637281, 8838148, 11047685, 17274562, 22095370, 34549124, 43186405, 44190740, 86372810, 95010091, 172745620, 190020182, 380040364, 475050455, 950100910, 1900201820]

約数ペア:

[(1, 1900201820), (2, 950100910), (4, 475050455), (5, 380040364), (10, 190020182), (11, 172745620), (20, 95010091), (22, 86372810), (43, 44190740), (44, 43186405), (55, 34549124), (86, 22095370), (110, 17274562), (172, 11047685), (215, 8838148), (220, 8637281), (430, 4419074), (473, 4017340), (860, 2209537), (946, 2008670), (1892, 1004335), (2365, 803468), (4730, 401734), (9460, 200867)]