639734168

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 1259712000

約数和(自身を除く): 619977832

約数列:

[1, 2, 4, 8, 53, 59, 106, 107, 118, 212, 214, 236, 239, 424, 428, 472, 478, 856, 956, 1912, 3127, 5671, 6254, 6313, 11342, 12508, 12626, 12667, 14101, 22684, 25016, 25252, 25334, 25573, 28202, 45368, 50504, 50668, 51146, 56404, 101336, 102292, 112808, 204584, 334589, 669178, 747353, 1338356, 1355369, 1494706, 1508807, 2676712, 2710738, 2989412, 3017614, 5421476, 5978824, 6035228, 10842952, 12070456, 79966771, 159933542, 319867084, 639734168]

約数ペア:

[(1, 639734168), (2, 319867084), (4, 159933542), (8, 79966771), (53, 12070456), (59, 10842952), (106, 6035228), (107, 5978824), (118, 5421476), (212, 3017614), (214, 2989412), (236, 2710738), (239, 2676712), (424, 1508807), (428, 1494706), (472, 1355369), (478, 1338356), (856, 747353), (956, 669178), (1912, 334589), (3127, 204584), (5671, 112808), (6254, 102292), (6313, 101336), (11342, 56404), (12508, 51146), (12626, 50668), (12667, 50504), (14101, 45368), (22684, 28202), (25016, 25573), (25252, 25334)]