257207496

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 256

約数和(自身を含む): 851558400

約数和(自身を除く): 594350904

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 29, 31, 39, 42, 52, 56, 58, 62, 78, 84, 87, 91, 93, 104, 116, 124, 131, 156, 168, 174, 182, 186, 203, 217, 232, 248, 262, 273, 312, 348, 364, 372, 377, 393, 403, 406, 434, 524, 546, 609, 651, 696, 728, 744, 754, 786, 806, 812, 868, 899, 917, 1048, 1092, 1131, 1209, 1218, 1302, 1508, 1572, 1612, 1624, 1703, 1736, 1798, 1834, 2184, 2262, 2418, 2436, 2604, 2639, 2697, 2751, 2821, 3016, 3144, 3224, 3406, 3596, 3668, 3799, 4061, 4524, 4836, 4872, 5109, 5208, 5278, 5394, 5502, 5642, 6293, 6812, 7192, 7336, 7598, 7917, 8122, 8463, 9048, 9672, 10218, 10556, 10788, 11004, 11284, 11397, 11687, 11921, 12183, 12586, 13624, 15196, 15834, 16244, 16926, 18879, 20436, 21112, 21576, 22008, 22568, 22794, 23374, 23842, 24366, 25172, 26593, 28427, 30392, 31668, 32488, 33852, 35061, 35763, 37758, 40872, 45588, 46748, 47684, 48732, 49387, 50344, 52793, 53186, 56854, 63336, 67704, 70122, 71526, 75516, 79779, 81809, 85281, 91176, 93496, 95368, 97464, 98774, 105586, 106372, 113708, 117769, 140244, 143052, 148161, 151032, 158379, 159558, 163618, 170562, 197548, 211172, 212744, 227416, 235538, 245427, 280488, 286104, 296322, 316758, 319116, 327236, 341124, 345709, 353307, 369551, 395096, 422344, 471076, 490854, 592644, 633516, 638232, 654472, 682248, 691418, 706614, 739102, 824383, 942152, 981708, 1037127, 1108653, 1185288, 1267032, 1382836, 1413228, 1478204, 1530997, 1648766, 1963416, 2074254, 2217306, 2473149, 2765672, 2826456, 2956408, 3061994, 3297532, 4148508, 4434612, 4592991, 4946298, 6123988, 6595064, 8297016, 8869224, 9185982, 9892596, 10716979, 12247976, 18371964, 19785192, 21433958, 32150937, 36743928, 42867916, 64301874, 85735832, 128603748, 257207496]

約数ペア:

[(1, 257207496), (2, 128603748), (3, 85735832), (4, 64301874), (6, 42867916), (7, 36743928), (8, 32150937), (12, 21433958), (13, 19785192), (14, 18371964), (21, 12247976), (24, 10716979), (26, 9892596), (28, 9185982), (29, 8869224), (31, 8297016), (39, 6595064), (42, 6123988), (52, 4946298), (56, 4592991), (58, 4434612), (62, 4148508), (78, 3297532), (84, 3061994), (87, 2956408), (91, 2826456), (93, 2765672), (104, 2473149), (116, 2217306), (124, 2074254), (131, 1963416), (156, 1648766), (168, 1530997), (174, 1478204), (182, 1413228), (186, 1382836), (203, 1267032), (217, 1185288), (232, 1108653), (248, 1037127), (262, 981708), (273, 942152), (312, 824383), (348, 739102), (364, 706614), (372, 691418), (377, 682248), (393, 654472), (403, 638232), (406, 633516), (434, 592644), (524, 490854), (546, 471076), (609, 422344), (651, 395096), (696, 369551), (728, 353307), (744, 345709), (754, 341124), (786, 327236), (806, 319116), (812, 316758), (868, 296322), (899, 286104), (917, 280488), (1048, 245427), (1092, 235538), (1131, 227416), (1209, 212744), (1218, 211172), (1302, 197548), (1508, 170562), (1572, 163618), (1612, 159558), (1624, 158379), (1703, 151032), (1736, 148161), (1798, 143052), (1834, 140244), (2184, 117769), (2262, 113708), (2418, 106372), (2436, 105586), (2604, 98774), (2639, 97464), (2697, 95368), (2751, 93496), (2821, 91176), (3016, 85281), (3144, 81809), (3224, 79779), (3406, 75516), (3596, 71526), (3668, 70122), (3799, 67704), (4061, 63336), (4524, 56854), (4836, 53186), (4872, 52793), (5109, 50344), (5208, 49387), (5278, 48732), (5394, 47684), (5502, 46748), (5642, 45588), (6293, 40872), (6812, 37758), (7192, 35763), (7336, 35061), (7598, 33852), (7917, 32488), (8122, 31668), (8463, 30392), (9048, 28427), (9672, 26593), (10218, 25172), (10556, 24366), (10788, 23842), (11004, 23374), (11284, 22794), (11397, 22568), (11687, 22008), (11921, 21576), (12183, 21112), (12586, 20436), (13624, 18879), (15196, 16926), (15834, 16244)]