31180828

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 64661184

約数和(自身を除く): 33480356

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 157, 164, 173, 287, 314, 346, 574, 628, 692, 1099, 1148, 1211, 2198, 2422, 4396, 4844, 6437, 7093, 12874, 14186, 25748, 27161, 28372, 45059, 49651, 54322, 90118, 99302, 108644, 180236, 190127, 198604, 380254, 760508, 1113601, 2227202, 4454404, 7795207, 15590414, 31180828]

約数ペア:

[(1, 31180828), (2, 15590414), (4, 7795207), (7, 4454404), (14, 2227202), (28, 1113601), (41, 760508), (82, 380254), (157, 198604), (164, 190127), (173, 180236), (287, 108644), (314, 99302), (346, 90118), (574, 54322), (628, 49651), (692, 45059), (1099, 28372), (1148, 27161), (1211, 25748), (2198, 14186), (2422, 12874), (4396, 7093), (4844, 6437)]