256743732

素因数分解:

$2^2\times 3^1\times 7^5\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 746672640

約数和(自身を除く): 489928908

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 67, 76, 84, 98, 114, 133, 134, 147, 196, 201, 228, 266, 268, 294, 343, 399, 402, 469, 532, 588, 686, 798, 804, 931, 938, 1029, 1273, 1372, 1407, 1596, 1862, 1876, 2058, 2401, 2546, 2793, 2814, 3283, 3724, 3819, 4116, 4802, 5092, 5586, 5628, 6517, 6566, 7203, 7638, 8911, 9604, 9849, 11172, 13034, 13132, 14406, 15276, 16807, 17822, 19551, 19698, 22981, 26068, 26733, 28812, 33614, 35644, 39102, 39396, 45619, 45962, 50421, 53466, 62377, 67228, 68943, 78204, 91238, 91924, 100842, 106932, 124754, 136857, 137886, 160867, 182476, 187131, 201684, 249508, 273714, 275772, 319333, 321734, 374262, 436639, 482601, 547428, 638666, 643468, 748524, 873278, 957999, 965202, 1126069, 1277332, 1309917, 1746556, 1915998, 1930404, 2252138, 2619834, 3056473, 3378207, 3831996, 4504276, 5239668, 6112946, 6756414, 9169419, 12225892, 13512828, 18338838, 21395311, 36677676, 42790622, 64185933, 85581244, 128371866, 256743732]

約数ペア:

[(1, 256743732), (2, 128371866), (3, 85581244), (4, 64185933), (6, 42790622), (7, 36677676), (12, 21395311), (14, 18338838), (19, 13512828), (21, 12225892), (28, 9169419), (38, 6756414), (42, 6112946), (49, 5239668), (57, 4504276), (67, 3831996), (76, 3378207), (84, 3056473), (98, 2619834), (114, 2252138), (133, 1930404), (134, 1915998), (147, 1746556), (196, 1309917), (201, 1277332), (228, 1126069), (266, 965202), (268, 957999), (294, 873278), (343, 748524), (399, 643468), (402, 638666), (469, 547428), (532, 482601), (588, 436639), (686, 374262), (798, 321734), (804, 319333), (931, 275772), (938, 273714), (1029, 249508), (1273, 201684), (1372, 187131), (1407, 182476), (1596, 160867), (1862, 137886), (1876, 136857), (2058, 124754), (2401, 106932), (2546, 100842), (2793, 91924), (2814, 91238), (3283, 78204), (3724, 68943), (3819, 67228), (4116, 62377), (4802, 53466), (5092, 50421), (5586, 45962), (5628, 45619), (6517, 39396), (6566, 39102), (7203, 35644), (7638, 33614), (8911, 28812), (9604, 26733), (9849, 26068), (11172, 22981), (13034, 19698), (13132, 19551), (14406, 17822), (15276, 16807)]