2009255020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{6299}}^1$

素因数の和:6738

約数の個数: 48

約数和(自身を含む): 4334148000

約数和(自身を除く): 2324892980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 389, 410, 778, 820, 1556, 1945, 3890, 6299, 7780, 12598, 15949, 25196, 31495, 31898, 62990, 63796, 79745, 125980, 159490, 258259, 318980, 516518, 1033036, 1291295, 2450311, 2582590, 4900622, 5165180, 9801244, 12251555, 24503110, 49006220, 100462751, 200925502, 401851004, 502313755, 1004627510, 2009255020]

約数ペア:

[(1, 2009255020), (2, 1004627510), (4, 502313755), (5, 401851004), (10, 200925502), (20, 100462751), (41, 49006220), (82, 24503110), (164, 12251555), (205, 9801244), (389, 5165180), (410, 4900622), (778, 2582590), (820, 2450311), (1556, 1291295), (1945, 1033036), (3890, 516518), (6299, 318980), (7780, 258259), (12598, 159490), (15949, 125980), (25196, 79745), (31495, 63796), (31898, 62990)]