20346004

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 22554476

約数列:

[1, 2, 4, 7, 14, 28, 37, 41, 74, 82, 148, 164, 259, 287, 479, 518, 574, 958, 1036, 1148, 1517, 1916, 3034, 3353, 6068, 6706, 10619, 13412, 17723, 19639, 21238, 35446, 39278, 42476, 70892, 78556, 124061, 137473, 248122, 274946, 496244, 549892, 726643, 1453286, 2906572, 5086501, 10173002, 20346004]

約数ペア:

[(1, 20346004), (2, 10173002), (4, 5086501), (7, 2906572), (14, 1453286), (28, 726643), (37, 549892), (41, 496244), (74, 274946), (82, 248122), (148, 137473), (164, 124061), (259, 78556), (287, 70892), (479, 42476), (518, 39278), (574, 35446), (958, 21238), (1036, 19639), (1148, 17723), (1517, 13412), (1916, 10619), (3034, 6706), (3353, 6068)]