641280640

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2$

素因数の和:81

約数の個数: 432

約数和(自身を含む): 2122604190

約数和(自身を除く): 1481323550

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 49, 52, 55, 56, 64, 65, 70, 77, 80, 88, 91, 98, 104, 110, 112, 121, 128, 130, 140, 143, 154, 160, 169, 176, 182, 196, 208, 220, 224, 242, 245, 260, 280, 286, 308, 320, 338, 352, 364, 385, 392, 416, 440, 448, 455, 484, 490, 520, 539, 560, 572, 605, 616, 637, 640, 676, 704, 715, 728, 770, 784, 832, 845, 847, 880, 896, 910, 968, 980, 1001, 1040, 1078, 1120, 1144, 1183, 1210, 1232, 1274, 1352, 1408, 1430, 1456, 1540, 1568, 1573, 1664, 1690, 1694, 1760, 1820, 1859, 1936, 1960, 2002, 2080, 2156, 2240, 2288, 2366, 2420, 2464, 2548, 2695, 2704, 2860, 2912, 3080, 3136, 3146, 3185, 3380, 3388, 3520, 3640, 3718, 3872, 3920, 4004, 4160, 4235, 4312, 4480, 4576, 4732, 4840, 4928, 5005, 5096, 5390, 5408, 5720, 5824, 5915, 5929, 6160, 6272, 6292, 6370, 6760, 6776, 7007, 7040, 7280, 7436, 7744, 7840, 7865, 8008, 8281, 8320, 8470, 8624, 9152, 9295, 9464, 9680, 9856, 10010, 10192, 10780, 10816, 11011, 11440, 11648, 11830, 11858, 12320, 12584, 12740, 13013, 13520, 13552, 14014, 14560, 14872, 15488, 15680, 15730, 16016, 16562, 16940, 17248, 18304, 18590, 18928, 19360, 20020, 20384, 20449, 21560, 21632, 22022, 22880, 23660, 23716, 24640, 25168, 25480, 26026, 27040, 27104, 28028, 29120, 29645, 29744, 31360, 31460, 32032, 33124, 33880, 34496, 35035, 37180, 37856, 38720, 40040, 40768, 40898, 41405, 43120, 44044, 45760, 47320, 47432, 49280, 50336, 50960, 52052, 54080, 54208, 55055, 56056, 58240, 59290, 59488, 62920, 64064, 65065, 66248, 67760, 68992, 70070, 74360, 75712, 77077, 77440, 80080, 81536, 81796, 82810, 86240, 88088, 91091, 91520, 94640, 94864, 100672, 101920, 102245, 104104, 108160, 108416, 110110, 112112, 118580, 118976, 125840, 128128, 130130, 132496, 135520, 140140, 143143, 148720, 151424, 154154, 160160, 163592, 165620, 172480, 176176, 182182, 189280, 189728, 201344, 203840, 204490, 208208, 220220, 224224, 237160, 237952, 251680, 260260, 264992, 271040, 280280, 286286, 297440, 308308, 320320, 327184, 331240, 344960, 352352, 364364, 378560, 379456, 385385, 407680, 408980, 416416, 440440, 448448, 455455, 474320, 503360, 520520, 529984, 542080, 560560, 572572, 594880, 616616, 640640, 654368, 662480, 704704, 715715, 728728, 757120, 758912, 770770, 817960, 832832, 880880, 896896, 910910, 948640, 1002001, 1006720, 1041040, 1059968, 1121120, 1145144, 1189760, 1233232, 1308736, 1324960, 1409408, 1431430, 1457456, 1541540, 1635920, 1665664, 1761760, 1821820, 1897280, 2004002, 2082080, 2242240, 2290288, 2466464, 2617472, 2649920, 2862860, 2914912, 3083080, 3271840, 3523520, 3643640, 3794560, 4008004, 4164160, 4484480, 4580576, 4932928, 5010005, 5299840, 5725720, 5829824, 6166160, 6543680, 7047040, 7287280, 8016008, 8328320, 9161152, 9865856, 10020010, 11451440, 11659648, 12332320, 13087360, 14574560, 16032016, 18322304, 20040020, 22902880, 24664640, 29149120, 32064032, 40080040, 45805760, 49329280, 58298240, 64128064, 80160080, 91611520, 128256128, 160320160, 320640320, 641280640]

約数ペア:

[(1, 641280640), (2, 320640320), (4, 160320160), (5, 128256128), (7, 91611520), (8, 80160080), (10, 64128064), (11, 58298240), (13, 49329280), (14, 45805760), (16, 40080040), (20, 32064032), (22, 29149120), (26, 24664640), (28, 22902880), (32, 20040020), (35, 18322304), (40, 16032016), (44, 14574560), (49, 13087360), (52, 12332320), (55, 11659648), (56, 11451440), (64, 10020010), (65, 9865856), (70, 9161152), (77, 8328320), (80, 8016008), (88, 7287280), (91, 7047040), (98, 6543680), (104, 6166160), (110, 5829824), (112, 5725720), (121, 5299840), (128, 5010005), (130, 4932928), (140, 4580576), (143, 4484480), (154, 4164160), (160, 4008004), (169, 3794560), (176, 3643640), (182, 3523520), (196, 3271840), (208, 3083080), (220, 2914912), (224, 2862860), (242, 2649920), (245, 2617472), (260, 2466464), (280, 2290288), (286, 2242240), (308, 2082080), (320, 2004002), (338, 1897280), (352, 1821820), (364, 1761760), (385, 1665664), (392, 1635920), (416, 1541540), (440, 1457456), (448, 1431430), (455, 1409408), (484, 1324960), (490, 1308736), (520, 1233232), (539, 1189760), (560, 1145144), (572, 1121120), (605, 1059968), (616, 1041040), (637, 1006720), (640, 1002001), (676, 948640), (704, 910910), (715, 896896), (728, 880880), (770, 832832), (784, 817960), (832, 770770), (845, 758912), (847, 757120), (880, 728728), (896, 715715), (910, 704704), (968, 662480), (980, 654368), (1001, 640640), (1040, 616616), (1078, 594880), (1120, 572572), (1144, 560560), (1183, 542080), (1210, 529984), (1232, 520520), (1274, 503360), (1352, 474320), (1408, 455455), (1430, 448448), (1456, 440440), (1540, 416416), (1568, 408980), (1573, 407680), (1664, 385385), (1690, 379456), (1694, 378560), (1760, 364364), (1820, 352352), (1859, 344960), (1936, 331240), (1960, 327184), (2002, 320320), (2080, 308308), (2156, 297440), (2240, 286286), (2288, 280280), (2366, 271040), (2420, 264992), (2464, 260260), (2548, 251680), (2695, 237952), (2704, 237160), (2860, 224224), (2912, 220220), (3080, 208208), (3136, 204490), (3146, 203840), (3185, 201344), (3380, 189728), (3388, 189280), (3520, 182182), (3640, 176176), (3718, 172480), (3872, 165620), (3920, 163592), (4004, 160160), (4160, 154154), (4235, 151424), (4312, 148720), (4480, 143143), (4576, 140140), (4732, 135520), (4840, 132496), (4928, 130130), (5005, 128128), (5096, 125840), (5390, 118976), (5408, 118580), (5720, 112112), (5824, 110110), (5915, 108416), (5929, 108160), (6160, 104104), (6272, 102245), (6292, 101920), (6370, 100672), (6760, 94864), (6776, 94640), (7007, 91520), (7040, 91091), (7280, 88088), (7436, 86240), (7744, 82810), (7840, 81796), (7865, 81536), (8008, 80080), (8281, 77440), (8320, 77077), (8470, 75712), (8624, 74360), (9152, 70070), (9295, 68992), (9464, 67760), (9680, 66248), (9856, 65065), (10010, 64064), (10192, 62920), (10780, 59488), (10816, 59290), (11011, 58240), (11440, 56056), (11648, 55055), (11830, 54208), (11858, 54080), (12320, 52052), (12584, 50960), (12740, 50336), (13013, 49280), (13520, 47432), (13552, 47320), (14014, 45760), (14560, 44044), (14872, 43120), (15488, 41405), (15680, 40898), (15730, 40768), (16016, 40040), (16562, 38720), (16940, 37856), (17248, 37180), (18304, 35035), (18590, 34496), (18928, 33880), (19360, 33124), (20020, 32032), (20384, 31460), (20449, 31360), (21560, 29744), (21632, 29645), (22022, 29120), (22880, 28028), (23660, 27104), (23716, 27040), (24640, 26026), (25168, 25480)]