256532640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{839}}^1$

素因数の和:884

約数の個数: 288

約数和(自身を含む): 1013523840

約数和(自身を除く): 756991200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 98, 104, 105, 112, 120, 130, 140, 147, 156, 160, 168, 182, 195, 196, 208, 210, 224, 240, 245, 260, 273, 280, 294, 312, 336, 364, 390, 392, 416, 420, 455, 480, 490, 520, 546, 560, 588, 624, 637, 672, 728, 735, 780, 784, 839, 840, 910, 980, 1040, 1092, 1120, 1176, 1248, 1274, 1365, 1456, 1470, 1560, 1568, 1678, 1680, 1820, 1911, 1960, 2080, 2184, 2352, 2517, 2548, 2730, 2912, 2940, 3120, 3185, 3356, 3360, 3640, 3822, 3920, 4195, 4368, 4704, 5034, 5096, 5460, 5873, 5880, 6240, 6370, 6712, 7280, 7644, 7840, 8390, 8736, 9555, 10068, 10192, 10907, 10920, 11746, 11760, 12585, 12740, 13424, 14560, 15288, 16780, 17619, 19110, 20136, 20384, 21814, 21840, 23492, 23520, 25170, 25480, 26848, 29365, 30576, 32721, 33560, 35238, 38220, 40272, 41111, 43628, 43680, 46984, 50340, 50960, 54535, 58730, 61152, 65442, 67120, 70476, 76349, 76440, 80544, 82222, 87256, 88095, 93968, 100680, 101920, 109070, 117460, 123333, 130884, 134240, 140952, 152698, 152880, 163605, 164444, 174512, 176190, 187936, 201360, 205555, 218140, 229047, 234920, 246666, 261768, 281904, 305396, 305760, 327210, 328888, 349024, 352380, 381745, 402720, 411110, 436280, 458094, 469840, 493332, 523536, 534443, 563808, 610792, 616665, 654420, 657776, 704760, 763490, 822220, 872560, 916188, 939680, 986664, 1047072, 1068886, 1145235, 1221584, 1233330, 1308840, 1315552, 1409520, 1526980, 1603329, 1644440, 1745120, 1832376, 1973328, 2137772, 2290470, 2443168, 2466660, 2617680, 2672215, 2819040, 3053960, 3206658, 3288880, 3664752, 3946656, 4275544, 4580940, 4933320, 5235360, 5344430, 6107920, 6413316, 6577760, 7329504, 8016645, 8551088, 9161880, 9866640, 10688860, 12215840, 12826632, 16033290, 17102176, 18323760, 19733280, 21377720, 25653264, 32066580, 36647520, 42755440, 51306528, 64133160, 85510880, 128266320, 256532640]

約数ペア:

[(1, 256532640), (2, 128266320), (3, 85510880), (4, 64133160), (5, 51306528), (6, 42755440), (7, 36647520), (8, 32066580), (10, 25653264), (12, 21377720), (13, 19733280), (14, 18323760), (15, 17102176), (16, 16033290), (20, 12826632), (21, 12215840), (24, 10688860), (26, 9866640), (28, 9161880), (30, 8551088), (32, 8016645), (35, 7329504), (39, 6577760), (40, 6413316), (42, 6107920), (48, 5344430), (49, 5235360), (52, 4933320), (56, 4580940), (60, 4275544), (65, 3946656), (70, 3664752), (78, 3288880), (80, 3206658), (84, 3053960), (91, 2819040), (96, 2672215), (98, 2617680), (104, 2466660), (105, 2443168), (112, 2290470), (120, 2137772), (130, 1973328), (140, 1832376), (147, 1745120), (156, 1644440), (160, 1603329), (168, 1526980), (182, 1409520), (195, 1315552), (196, 1308840), (208, 1233330), (210, 1221584), (224, 1145235), (240, 1068886), (245, 1047072), (260, 986664), (273, 939680), (280, 916188), (294, 872560), (312, 822220), (336, 763490), (364, 704760), (390, 657776), (392, 654420), (416, 616665), (420, 610792), (455, 563808), (480, 534443), (490, 523536), (520, 493332), (546, 469840), (560, 458094), (588, 436280), (624, 411110), (637, 402720), (672, 381745), (728, 352380), (735, 349024), (780, 328888), (784, 327210), (839, 305760), (840, 305396), (910, 281904), (980, 261768), (1040, 246666), (1092, 234920), (1120, 229047), (1176, 218140), (1248, 205555), (1274, 201360), (1365, 187936), (1456, 176190), (1470, 174512), (1560, 164444), (1568, 163605), (1678, 152880), (1680, 152698), (1820, 140952), (1911, 134240), (1960, 130884), (2080, 123333), (2184, 117460), (2352, 109070), (2517, 101920), (2548, 100680), (2730, 93968), (2912, 88095), (2940, 87256), (3120, 82222), (3185, 80544), (3356, 76440), (3360, 76349), (3640, 70476), (3822, 67120), (3920, 65442), (4195, 61152), (4368, 58730), (4704, 54535), (5034, 50960), (5096, 50340), (5460, 46984), (5873, 43680), (5880, 43628), (6240, 41111), (6370, 40272), (6712, 38220), (7280, 35238), (7644, 33560), (7840, 32721), (8390, 30576), (8736, 29365), (9555, 26848), (10068, 25480), (10192, 25170), (10907, 23520), (10920, 23492), (11746, 21840), (11760, 21814), (12585, 20384), (12740, 20136), (13424, 19110), (14560, 17619), (15288, 16780)]