257231520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:205

約数の個数: 432

約数和(自身を含む): 1093502592

約数和(自身を除く): 836271072

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 151, 156, 160, 168, 169, 180, 182, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 302, 312, 315, 336, 338, 360, 364, 390, 416, 420, 453, 455, 468, 480, 504, 507, 520, 546, 560, 585, 604, 624, 630, 672, 676, 720, 728, 755, 780, 819, 840, 845, 906, 910, 936, 1008, 1014, 1040, 1057, 1092, 1120, 1170, 1183, 1208, 1248, 1260, 1352, 1359, 1365, 1440, 1456, 1510, 1521, 1560, 1638, 1680, 1690, 1812, 1820, 1872, 1963, 2016, 2028, 2080, 2114, 2184, 2265, 2340, 2366, 2416, 2520, 2535, 2704, 2718, 2730, 2912, 3020, 3042, 3120, 3171, 3276, 3360, 3380, 3549, 3624, 3640, 3744, 3926, 4056, 4095, 4228, 4368, 4530, 4680, 4732, 4832, 5040, 5070, 5285, 5408, 5436, 5460, 5889, 5915, 6040, 6084, 6240, 6342, 6552, 6760, 6795, 7098, 7248, 7280, 7605, 7852, 8112, 8190, 8456, 8736, 9060, 9360, 9464, 9513, 9815, 10080, 10140, 10570, 10647, 10872, 10920, 11778, 11830, 12080, 12168, 12684, 13104, 13520, 13590, 13741, 14196, 14496, 14560, 15210, 15704, 15855, 16224, 16380, 16912, 17667, 17745, 18120, 18720, 18928, 19026, 19630, 20280, 21140, 21294, 21744, 21840, 23556, 23660, 24160, 24336, 25368, 25519, 26208, 27040, 27180, 27482, 28392, 29445, 30420, 31408, 31710, 32760, 33824, 35334, 35490, 36240, 37856, 38052, 39260, 40560, 41223, 42280, 42588, 43488, 43680, 47112, 47320, 47565, 48672, 50736, 51038, 53235, 54360, 54964, 56784, 58890, 60840, 62816, 63420, 65520, 68705, 70668, 70980, 72480, 76104, 76557, 78520, 81120, 82446, 84560, 85176, 88335, 94224, 94640, 95130, 101472, 102076, 106470, 108720, 109928, 113568, 117780, 121680, 123669, 126840, 127595, 131040, 137410, 141336, 141960, 152208, 153114, 157040, 164892, 169120, 170352, 176670, 178633, 188448, 189280, 190260, 204152, 206115, 212940, 217440, 219856, 229671, 235560, 243360, 247338, 253680, 255190, 274820, 282672, 283920, 304416, 306228, 314080, 329784, 340704, 353340, 357266, 380520, 382785, 408304, 412230, 425880, 439712, 459342, 471120, 494676, 507360, 510380, 535899, 549640, 565344, 567840, 612456, 618345, 659568, 706680, 714532, 761040, 765570, 816608, 824460, 851760, 893165, 918684, 942240, 989352, 1020760, 1071798, 1099280, 1148355, 1224912, 1236690, 1319136, 1413360, 1429064, 1522080, 1531140, 1607697, 1648920, 1703520, 1786330, 1837368, 1978704, 2041520, 2143596, 2198560, 2296710, 2449824, 2473380, 2679495, 2826720, 2858128, 3062280, 3215394, 3297840, 3572660, 3674736, 3957408, 4083040, 4287192, 4593420, 4946760, 5358990, 5716256, 6124560, 6430788, 6595680, 7145320, 7349472, 8038485, 8574384, 9186840, 9893520, 10717980, 12249120, 12861576, 14290640, 16076970, 17148768, 18373680, 19787040, 21435960, 25723152, 28581280, 32153940, 36747360, 42871920, 51446304, 64307880, 85743840, 128615760, 257231520]

約数ペア:

[(1, 257231520), (2, 128615760), (3, 85743840), (4, 64307880), (5, 51446304), (6, 42871920), (7, 36747360), (8, 32153940), (9, 28581280), (10, 25723152), (12, 21435960), (13, 19787040), (14, 18373680), (15, 17148768), (16, 16076970), (18, 14290640), (20, 12861576), (21, 12249120), (24, 10717980), (26, 9893520), (28, 9186840), (30, 8574384), (32, 8038485), (35, 7349472), (36, 7145320), (39, 6595680), (40, 6430788), (42, 6124560), (45, 5716256), (48, 5358990), (52, 4946760), (56, 4593420), (60, 4287192), (63, 4083040), (65, 3957408), (70, 3674736), (72, 3572660), (78, 3297840), (80, 3215394), (84, 3062280), (90, 2858128), (91, 2826720), (96, 2679495), (104, 2473380), (105, 2449824), (112, 2296710), (117, 2198560), (120, 2143596), (126, 2041520), (130, 1978704), (140, 1837368), (144, 1786330), (151, 1703520), (156, 1648920), (160, 1607697), (168, 1531140), (169, 1522080), (180, 1429064), (182, 1413360), (195, 1319136), (208, 1236690), (210, 1224912), (224, 1148355), (234, 1099280), (240, 1071798), (252, 1020760), (260, 989352), (273, 942240), (280, 918684), (288, 893165), (302, 851760), (312, 824460), (315, 816608), (336, 765570), (338, 761040), (360, 714532), (364, 706680), (390, 659568), (416, 618345), (420, 612456), (453, 567840), (455, 565344), (468, 549640), (480, 535899), (504, 510380), (507, 507360), (520, 494676), (546, 471120), (560, 459342), (585, 439712), (604, 425880), (624, 412230), (630, 408304), (672, 382785), (676, 380520), (720, 357266), (728, 353340), (755, 340704), (780, 329784), (819, 314080), (840, 306228), (845, 304416), (906, 283920), (910, 282672), (936, 274820), (1008, 255190), (1014, 253680), (1040, 247338), (1057, 243360), (1092, 235560), (1120, 229671), (1170, 219856), (1183, 217440), (1208, 212940), (1248, 206115), (1260, 204152), (1352, 190260), (1359, 189280), (1365, 188448), (1440, 178633), (1456, 176670), (1510, 170352), (1521, 169120), (1560, 164892), (1638, 157040), (1680, 153114), (1690, 152208), (1812, 141960), (1820, 141336), (1872, 137410), (1963, 131040), (2016, 127595), (2028, 126840), (2080, 123669), (2114, 121680), (2184, 117780), (2265, 113568), (2340, 109928), (2366, 108720), (2416, 106470), (2520, 102076), (2535, 101472), (2704, 95130), (2718, 94640), (2730, 94224), (2912, 88335), (3020, 85176), (3042, 84560), (3120, 82446), (3171, 81120), (3276, 78520), (3360, 76557), (3380, 76104), (3549, 72480), (3624, 70980), (3640, 70668), (3744, 68705), (3926, 65520), (4056, 63420), (4095, 62816), (4228, 60840), (4368, 58890), (4530, 56784), (4680, 54964), (4732, 54360), (4832, 53235), (5040, 51038), (5070, 50736), (5285, 48672), (5408, 47565), (5436, 47320), (5460, 47112), (5889, 43680), (5915, 43488), (6040, 42588), (6084, 42280), (6240, 41223), (6342, 40560), (6552, 39260), (6760, 38052), (6795, 37856), (7098, 36240), (7248, 35490), (7280, 35334), (7605, 33824), (7852, 32760), (8112, 31710), (8190, 31408), (8456, 30420), (8736, 29445), (9060, 28392), (9360, 27482), (9464, 27180), (9513, 27040), (9815, 26208), (10080, 25519), (10140, 25368), (10570, 24336), (10647, 24160), (10872, 23660), (10920, 23556), (11778, 21840), (11830, 21744), (12080, 21294), (12168, 21140), (12684, 20280), (13104, 19630), (13520, 19026), (13590, 18928), (13741, 18720), (14196, 18120), (14496, 17745), (14560, 17667), (15210, 16912), (15704, 16380), (15855, 16224)]