261634912

素因数分解:

$2^5\times 7^3\times {\mathrm{11}}^2\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 663616800

約数和(自身を除く): 401981888

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 121, 154, 176, 196, 197, 224, 242, 308, 343, 352, 392, 394, 484, 539, 616, 686, 784, 788, 847, 968, 1078, 1232, 1372, 1379, 1568, 1576, 1694, 1936, 2156, 2167, 2464, 2744, 2758, 3152, 3388, 3773, 3872, 4312, 4334, 5488, 5516, 5929, 6304, 6776, 7546, 8624, 8668, 9653, 10976, 11032, 11858, 13552, 15092, 15169, 17248, 17336, 19306, 22064, 23716, 23837, 27104, 30184, 30338, 34672, 38612, 41503, 44128, 47432, 47674, 60368, 60676, 67571, 69344, 77224, 83006, 94864, 95348, 106183, 120736, 121352, 135142, 154448, 166012, 166859, 189728, 190696, 212366, 242704, 270284, 308896, 332024, 333718, 381392, 424732, 485408, 540568, 664048, 667436, 743281, 762784, 849464, 1081136, 1168013, 1328096, 1334872, 1486562, 1698928, 2162272, 2336026, 2669744, 2973124, 3397856, 4672052, 5339488, 5946248, 8176091, 9344104, 11892496, 16352182, 18688208, 23784992, 32704364, 37376416, 65408728, 130817456, 261634912]

約数ペア:

[(1, 261634912), (2, 130817456), (4, 65408728), (7, 37376416), (8, 32704364), (11, 23784992), (14, 18688208), (16, 16352182), (22, 11892496), (28, 9344104), (32, 8176091), (44, 5946248), (49, 5339488), (56, 4672052), (77, 3397856), (88, 2973124), (98, 2669744), (112, 2336026), (121, 2162272), (154, 1698928), (176, 1486562), (196, 1334872), (197, 1328096), (224, 1168013), (242, 1081136), (308, 849464), (343, 762784), (352, 743281), (392, 667436), (394, 664048), (484, 540568), (539, 485408), (616, 424732), (686, 381392), (784, 333718), (788, 332024), (847, 308896), (968, 270284), (1078, 242704), (1232, 212366), (1372, 190696), (1379, 189728), (1568, 166859), (1576, 166012), (1694, 154448), (1936, 135142), (2156, 121352), (2167, 120736), (2464, 106183), (2744, 95348), (2758, 94864), (3152, 83006), (3388, 77224), (3773, 69344), (3872, 67571), (4312, 60676), (4334, 60368), (5488, 47674), (5516, 47432), (5929, 44128), (6304, 41503), (6776, 38612), (7546, 34672), (8624, 30338), (8668, 30184), (9653, 27104), (10976, 23837), (11032, 23716), (11858, 22064), (13552, 19306), (15092, 17336), (15169, 17248)]