18873470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 42909696

約数和(自身を除く): 24036226

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 127, 154, 193, 254, 385, 386, 635, 770, 889, 965, 1270, 1351, 1397, 1778, 1930, 2123, 2702, 2794, 4246, 4445, 6755, 6985, 8890, 9779, 10615, 13510, 13970, 14861, 19558, 21230, 24511, 29722, 48895, 49022, 74305, 97790, 122555, 148610, 171577, 245110, 269621, 343154, 539242, 857885, 1348105, 1715770, 1887347, 2696210, 3774694, 9436735, 18873470]

約数ペア:

[(1, 18873470), (2, 9436735), (5, 3774694), (7, 2696210), (10, 1887347), (11, 1715770), (14, 1348105), (22, 857885), (35, 539242), (55, 343154), (70, 269621), (77, 245110), (110, 171577), (127, 148610), (154, 122555), (193, 97790), (254, 74305), (385, 49022), (386, 48895), (635, 29722), (770, 24511), (889, 21230), (965, 19558), (1270, 14861), (1351, 13970), (1397, 13510), (1778, 10615), (1930, 9779), (2123, 8890), (2702, 6985), (2794, 6755), (4246, 4445)]