1990400258

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{155719}}^1$

素因数の和:155822

約数の個数: 32

約数和(自身を含む): 3767178240

約数和(自身を除く): 1776777982

約数列:

[1, 2, 7, 11, 14, 22, 77, 83, 154, 166, 581, 913, 1162, 1826, 6391, 12782, 155719, 311438, 1090033, 1712909, 2180066, 3425818, 11990363, 12924677, 23980726, 25849354, 90472739, 142171447, 180945478, 284342894, 995200129, 1990400258]

約数ペア:

[(1, 1990400258), (2, 995200129), (7, 284342894), (11, 180945478), (14, 142171447), (22, 90472739), (77, 25849354), (83, 23980726), (154, 12924677), (166, 11990363), (581, 3425818), (913, 2180066), (1162, 1712909), (1826, 1090033), (6391, 311438), (12782, 155719)]