20880451606

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{820837}}^1$

素因数の和:820948

約数の個数: 32

約数和(自身を含む): 37824215040

約数和(自身を除く): 16943763434

約数列:

[1, 2, 7, 14, 23, 46, 79, 158, 161, 322, 553, 1106, 1817, 3634, 12719, 25438, 820837, 1641674, 5745859, 11491718, 18879251, 37758502, 64846123, 129692246, 132154757, 264309514, 453922861, 907845722, 1491460829, 2982921658, 10440225803, 20880451606]

約数ペア:

[(1, 20880451606), (2, 10440225803), (7, 2982921658), (14, 1491460829), (23, 907845722), (46, 453922861), (79, 264309514), (158, 132154757), (161, 129692246), (322, 64846123), (553, 37758502), (1106, 18879251), (1817, 11491718), (3634, 5745859), (12719, 1641674), (25438, 820837)]