256868976

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 240

約数和(自身を含む): 861278208

約数和(自身を除く): 604409232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 31, 39, 42, 48, 49, 52, 56, 62, 78, 84, 91, 93, 98, 104, 112, 124, 147, 156, 168, 182, 186, 196, 208, 217, 248, 271, 273, 294, 312, 336, 364, 372, 392, 403, 434, 496, 542, 546, 588, 624, 637, 651, 728, 744, 784, 806, 813, 868, 1084, 1092, 1176, 1209, 1274, 1302, 1456, 1488, 1519, 1612, 1626, 1736, 1897, 1911, 2168, 2184, 2352, 2418, 2548, 2604, 2821, 3038, 3224, 3252, 3472, 3523, 3794, 3822, 4336, 4368, 4557, 4836, 5096, 5208, 5642, 5691, 6076, 6448, 6504, 7046, 7588, 7644, 8401, 8463, 9114, 9672, 10192, 10416, 10569, 11284, 11382, 12152, 13008, 13279, 14092, 15176, 15288, 16802, 16926, 18228, 19344, 19747, 21138, 22568, 22764, 24304, 24661, 25203, 26558, 28184, 30352, 30576, 33604, 33852, 36456, 39494, 39837, 42276, 45136, 45528, 49322, 50406, 53116, 56368, 58807, 59241, 67208, 67704, 72912, 73983, 78988, 79674, 84552, 91056, 98644, 100812, 106232, 109213, 117614, 118482, 134416, 135408, 147966, 157976, 159348, 169104, 172627, 176421, 197288, 201624, 212464, 218426, 235228, 236964, 295932, 315952, 318696, 327639, 345254, 352842, 394576, 403248, 411649, 436852, 470456, 473928, 517881, 591864, 637392, 655278, 690508, 705684, 764491, 823298, 873704, 940912, 947856, 1035762, 1183728, 1234947, 1310556, 1381016, 1411368, 1528982, 1646596, 1747408, 2071524, 2293473, 2469894, 2621112, 2762032, 2822736, 3057964, 3293192, 4143048, 4586946, 4939788, 5242224, 5351437, 6115928, 6586384, 8286096, 9173892, 9879576, 10702874, 12231856, 16054311, 18347784, 19759152, 21405748, 32108622, 36695568, 42811496, 64217244, 85622992, 128434488, 256868976]

約数ペア:

[(1, 256868976), (2, 128434488), (3, 85622992), (4, 64217244), (6, 42811496), (7, 36695568), (8, 32108622), (12, 21405748), (13, 19759152), (14, 18347784), (16, 16054311), (21, 12231856), (24, 10702874), (26, 9879576), (28, 9173892), (31, 8286096), (39, 6586384), (42, 6115928), (48, 5351437), (49, 5242224), (52, 4939788), (56, 4586946), (62, 4143048), (78, 3293192), (84, 3057964), (91, 2822736), (93, 2762032), (98, 2621112), (104, 2469894), (112, 2293473), (124, 2071524), (147, 1747408), (156, 1646596), (168, 1528982), (182, 1411368), (186, 1381016), (196, 1310556), (208, 1234947), (217, 1183728), (248, 1035762), (271, 947856), (273, 940912), (294, 873704), (312, 823298), (336, 764491), (364, 705684), (372, 690508), (392, 655278), (403, 637392), (434, 591864), (496, 517881), (542, 473928), (546, 470456), (588, 436852), (624, 411649), (637, 403248), (651, 394576), (728, 352842), (744, 345254), (784, 327639), (806, 318696), (813, 315952), (868, 295932), (1084, 236964), (1092, 235228), (1176, 218426), (1209, 212464), (1274, 201624), (1302, 197288), (1456, 176421), (1488, 172627), (1519, 169104), (1612, 159348), (1626, 157976), (1736, 147966), (1897, 135408), (1911, 134416), (2168, 118482), (2184, 117614), (2352, 109213), (2418, 106232), (2548, 100812), (2604, 98644), (2821, 91056), (3038, 84552), (3224, 79674), (3252, 78988), (3472, 73983), (3523, 72912), (3794, 67704), (3822, 67208), (4336, 59241), (4368, 58807), (4557, 56368), (4836, 53116), (5096, 50406), (5208, 49322), (5642, 45528), (5691, 45136), (6076, 42276), (6448, 39837), (6504, 39494), (7046, 36456), (7588, 33852), (7644, 33604), (8401, 30576), (8463, 30352), (9114, 28184), (9672, 26558), (10192, 25203), (10416, 24661), (10569, 24304), (11284, 22764), (11382, 22568), (12152, 21138), (13008, 19747), (13279, 19344), (14092, 18228), (15176, 16926), (15288, 16802)]