256521888

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 288

約数和(自身を含む): 906272640

約数和(自身を除く): 649750752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 32, 36, 37, 38, 42, 48, 56, 57, 63, 72, 74, 76, 84, 96, 111, 112, 114, 126, 133, 144, 148, 152, 168, 171, 181, 222, 224, 228, 252, 259, 266, 288, 296, 304, 333, 336, 342, 362, 399, 444, 456, 504, 518, 532, 543, 592, 608, 666, 672, 684, 703, 724, 777, 798, 888, 912, 1008, 1036, 1064, 1086, 1184, 1197, 1267, 1332, 1368, 1406, 1448, 1554, 1596, 1629, 1776, 1824, 2016, 2072, 2109, 2128, 2172, 2331, 2394, 2534, 2664, 2736, 2812, 2896, 3108, 3192, 3258, 3439, 3552, 3801, 4144, 4218, 4256, 4344, 4662, 4788, 4921, 5068, 5328, 5472, 5624, 5792, 6216, 6327, 6384, 6516, 6697, 6878, 7602, 8288, 8436, 8688, 9324, 9576, 9842, 10136, 10317, 10656, 11248, 11403, 12432, 12654, 12768, 13032, 13394, 13756, 14763, 15204, 16872, 17376, 18648, 19152, 19684, 20091, 20272, 20634, 22496, 22806, 24073, 24864, 25308, 26064, 26788, 27512, 29526, 30408, 30951, 33744, 37296, 38304, 39368, 40182, 40544, 41268, 44289, 45612, 46879, 48146, 50616, 52128, 53576, 55024, 59052, 60273, 60816, 61902, 67488, 72219, 74592, 78736, 80364, 82536, 88578, 91224, 93758, 96292, 101232, 107152, 110048, 118104, 120546, 121632, 123804, 127243, 140637, 144438, 157472, 160728, 165072, 177156, 182448, 187516, 192584, 202464, 214304, 216657, 236208, 241092, 247608, 254486, 281274, 288876, 321456, 330144, 354312, 364896, 375032, 381729, 385168, 421911, 433314, 472416, 482184, 495216, 508972, 562548, 577752, 642912, 708624, 750064, 763458, 770336, 843822, 866628, 890701, 964368, 990432, 1017944, 1125096, 1145187, 1155504, 1417248, 1500128, 1526916, 1687644, 1733256, 1781402, 1928736, 2035888, 2250192, 2290374, 2311008, 2672103, 3053832, 3375288, 3466512, 3562804, 4071776, 4500384, 4580748, 5344206, 6107664, 6750576, 6933024, 7125608, 8016309, 9161496, 10688412, 12215328, 13501152, 14251216, 16032618, 18322992, 21376824, 28502432, 32065236, 36645984, 42753648, 64130472, 85507296, 128260944, 256521888]

約数ペア:

[(1, 256521888), (2, 128260944), (3, 85507296), (4, 64130472), (6, 42753648), (7, 36645984), (8, 32065236), (9, 28502432), (12, 21376824), (14, 18322992), (16, 16032618), (18, 14251216), (19, 13501152), (21, 12215328), (24, 10688412), (28, 9161496), (32, 8016309), (36, 7125608), (37, 6933024), (38, 6750576), (42, 6107664), (48, 5344206), (56, 4580748), (57, 4500384), (63, 4071776), (72, 3562804), (74, 3466512), (76, 3375288), (84, 3053832), (96, 2672103), (111, 2311008), (112, 2290374), (114, 2250192), (126, 2035888), (133, 1928736), (144, 1781402), (148, 1733256), (152, 1687644), (168, 1526916), (171, 1500128), (181, 1417248), (222, 1155504), (224, 1145187), (228, 1125096), (252, 1017944), (259, 990432), (266, 964368), (288, 890701), (296, 866628), (304, 843822), (333, 770336), (336, 763458), (342, 750064), (362, 708624), (399, 642912), (444, 577752), (456, 562548), (504, 508972), (518, 495216), (532, 482184), (543, 472416), (592, 433314), (608, 421911), (666, 385168), (672, 381729), (684, 375032), (703, 364896), (724, 354312), (777, 330144), (798, 321456), (888, 288876), (912, 281274), (1008, 254486), (1036, 247608), (1064, 241092), (1086, 236208), (1184, 216657), (1197, 214304), (1267, 202464), (1332, 192584), (1368, 187516), (1406, 182448), (1448, 177156), (1554, 165072), (1596, 160728), (1629, 157472), (1776, 144438), (1824, 140637), (2016, 127243), (2072, 123804), (2109, 121632), (2128, 120546), (2172, 118104), (2331, 110048), (2394, 107152), (2534, 101232), (2664, 96292), (2736, 93758), (2812, 91224), (2896, 88578), (3108, 82536), (3192, 80364), (3258, 78736), (3439, 74592), (3552, 72219), (3801, 67488), (4144, 61902), (4218, 60816), (4256, 60273), (4344, 59052), (4662, 55024), (4788, 53576), (4921, 52128), (5068, 50616), (5328, 48146), (5472, 46879), (5624, 45612), (5792, 44289), (6216, 41268), (6327, 40544), (6384, 40182), (6516, 39368), (6697, 38304), (6878, 37296), (7602, 33744), (8288, 30951), (8436, 30408), (8688, 29526), (9324, 27512), (9576, 26788), (9842, 26064), (10136, 25308), (10317, 24864), (10656, 24073), (11248, 22806), (11403, 22496), (12432, 20634), (12654, 20272), (12768, 20091), (13032, 19684), (13394, 19152), (13756, 18648), (14763, 17376), (15204, 16872)]