256543271432

素因数分解:

$2^3\times 7^2\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{20947}}^1$

素因数の和:21323

約数の個数: 96

約数和(自身を含む): 565973064000

約数和(自身を除く): 309429792568

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 157, 196, 199, 314, 392, 398, 628, 796, 1099, 1256, 1393, 1592, 2198, 2786, 4396, 5572, 7693, 8792, 9751, 11144, 15386, 19502, 20947, 30772, 31243, 39004, 41894, 61544, 62486, 78008, 83788, 124972, 146629, 167576, 218701, 249944, 293258, 437402, 586516, 874804, 1026403, 1173032, 1530907, 1749608, 2052806, 3061814, 3288679, 4105612, 4168453, 6123628, 6577358, 8211224, 8336906, 12247256, 13154716, 16673812, 23020753, 26309432, 29179171, 33347624, 46041506, 58358342, 92083012, 116716684, 161145271, 184166024, 204254197, 233433368, 322290542, 408508394, 644581084, 654447121, 817016788, 1289162168, 1308894242, 1634033576, 2617788484, 4581129847, 5235576968, 9162259694, 18324519388, 32067908929, 36649038776, 64135817858, 128271635716, 256543271432]

約数ペア:

[(1, 256543271432), (2, 128271635716), (4, 64135817858), (7, 36649038776), (8, 32067908929), (14, 18324519388), (28, 9162259694), (49, 5235576968), (56, 4581129847), (98, 2617788484), (157, 1634033576), (196, 1308894242), (199, 1289162168), (314, 817016788), (392, 654447121), (398, 644581084), (628, 408508394), (796, 322290542), (1099, 233433368), (1256, 204254197), (1393, 184166024), (1592, 161145271), (2198, 116716684), (2786, 92083012), (4396, 58358342), (5572, 46041506), (7693, 33347624), (8792, 29179171), (9751, 26309432), (11144, 23020753), (15386, 16673812), (19502, 13154716), (20947, 12247256), (30772, 8336906), (31243, 8211224), (39004, 6577358), (41894, 6123628), (61544, 4168453), (62486, 4105612), (78008, 3288679), (83788, 3061814), (124972, 2052806), (146629, 1749608), (167576, 1530907), (218701, 1173032), (249944, 1026403), (293258, 874804), (437402, 586516)]