1640803556

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1\times {\mathrm{757}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 3310944000

約数和(自身を除く): 1670140444

約数列:

[1, 2, 4, 7, 14, 28, 199, 389, 398, 757, 778, 796, 1393, 1514, 1556, 2723, 2786, 3028, 5299, 5446, 5572, 10598, 10892, 21196, 77411, 150643, 154822, 294473, 301286, 309644, 541877, 588946, 602572, 1054501, 1083754, 1177892, 2061311, 2109002, 2167508, 4122622, 4218004, 8245244, 58600127, 117200254, 234400508, 410200889, 820401778, 1640803556]

約数ペア:

[(1, 1640803556), (2, 820401778), (4, 410200889), (7, 234400508), (14, 117200254), (28, 58600127), (199, 8245244), (389, 4218004), (398, 4122622), (757, 2167508), (778, 2109002), (796, 2061311), (1393, 1177892), (1514, 1083754), (1556, 1054501), (2723, 602572), (2786, 588946), (3028, 541877), (5299, 309644), (5446, 301286), (5572, 294473), (10598, 154822), (10892, 150643), (21196, 77411)]