640535280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 480

約数和(自身を含む): 2621832192

約数和(自身を除く): 1981296912

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 23, 24, 28, 30, 33, 35, 40, 42, 44, 46, 48, 55, 56, 60, 66, 69, 70, 77, 80, 84, 88, 92, 105, 110, 112, 115, 120, 121, 132, 137, 138, 140, 154, 161, 165, 168, 176, 184, 210, 220, 230, 231, 240, 242, 253, 264, 274, 276, 280, 308, 322, 330, 336, 345, 363, 368, 385, 411, 420, 440, 460, 462, 483, 484, 506, 528, 548, 552, 560, 605, 616, 644, 660, 685, 690, 726, 759, 770, 805, 822, 840, 847, 880, 920, 924, 959, 966, 968, 1012, 1096, 1104, 1155, 1210, 1232, 1265, 1288, 1320, 1370, 1380, 1452, 1507, 1518, 1540, 1610, 1644, 1680, 1694, 1771, 1815, 1840, 1848, 1918, 1932, 1936, 2024, 2055, 2192, 2310, 2415, 2420, 2530, 2541, 2576, 2640, 2740, 2760, 2783, 2877, 2904, 3014, 3036, 3080, 3151, 3220, 3288, 3388, 3542, 3630, 3696, 3795, 3836, 3864, 4048, 4110, 4235, 4521, 4620, 4795, 4830, 4840, 5060, 5082, 5313, 5480, 5520, 5566, 5754, 5808, 6028, 6072, 6160, 6302, 6440, 6576, 6776, 7084, 7260, 7535, 7590, 7672, 7728, 8220, 8349, 8470, 8855, 9042, 9240, 9453, 9590, 9660, 9680, 10120, 10164, 10549, 10626, 10960, 11132, 11508, 12056, 12144, 12604, 12705, 12880, 13552, 13915, 14168, 14385, 14520, 15070, 15180, 15344, 15755, 16440, 16577, 16698, 16940, 17710, 18084, 18480, 18906, 19180, 19320, 19481, 20240, 20328, 21098, 21252, 22057, 22264, 22605, 23016, 24112, 25208, 25410, 26565, 27830, 28336, 28770, 29040, 30140, 30360, 31510, 31647, 32880, 33154, 33396, 33880, 34661, 35420, 36168, 37812, 38360, 38640, 38962, 40656, 41745, 42196, 42504, 44114, 44528, 45210, 46032, 47265, 49731, 50416, 50820, 52745, 53130, 55660, 57540, 58443, 60280, 60720, 63020, 63294, 66171, 66308, 66792, 67760, 69322, 70840, 72336, 75624, 76720, 77924, 82885, 83490, 84392, 85008, 88228, 90420, 94530, 97405, 99462, 101640, 103983, 105490, 106260, 110285, 111320, 115080, 116039, 116886, 120560, 126040, 126588, 132342, 132616, 133584, 138644, 141680, 151248, 155848, 158235, 165770, 166980, 168784, 173305, 176456, 180840, 189060, 194810, 198924, 203280, 207966, 210980, 212520, 220570, 222640, 230160, 232078, 233772, 242627, 248655, 252080, 253176, 264684, 265232, 277288, 292215, 311696, 316470, 330855, 331540, 333960, 346610, 348117, 352912, 361680, 378120, 381271, 389620, 397848, 415932, 421960, 425040, 441140, 464156, 467544, 485254, 497310, 506352, 519915, 529368, 554576, 580195, 584430, 632940, 661710, 663080, 667920, 693220, 696234, 727881, 756240, 762542, 779240, 795696, 831864, 843920, 882280, 928312, 935088, 970508, 994620, 1039830, 1058736, 1143813, 1160390, 1168860, 1213135, 1265880, 1323420, 1326160, 1386440, 1392468, 1455762, 1525084, 1558480, 1663728, 1740585, 1764560, 1856624, 1906355, 1941016, 1989240, 2079660, 2287626, 2320780, 2337720, 2426270, 2531760, 2646840, 2668897, 2772880, 2784936, 2911524, 3050168, 3481170, 3639405, 3812710, 3882032, 3978480, 4159320, 4575252, 4641560, 4675440, 4852540, 5293680, 5337794, 5569872, 5719065, 5823048, 6100336, 6962340, 7278810, 7625420, 8006691, 8318640, 9150504, 9283120, 9705080, 10675588, 11438130, 11646096, 13344485, 13924680, 14557620, 15250840, 16013382, 18301008, 19410160, 21351176, 22876260, 26688970, 27849360, 29115240, 30501680, 32026764, 40033455, 42702352, 45752520, 53377940, 58230480, 64053528, 80066910, 91505040, 106755880, 128107056, 160133820, 213511760, 320267640, 640535280]

約数ペア:

[(1, 640535280), (2, 320267640), (3, 213511760), (4, 160133820), (5, 128107056), (6, 106755880), (7, 91505040), (8, 80066910), (10, 64053528), (11, 58230480), (12, 53377940), (14, 45752520), (15, 42702352), (16, 40033455), (20, 32026764), (21, 30501680), (22, 29115240), (23, 27849360), (24, 26688970), (28, 22876260), (30, 21351176), (33, 19410160), (35, 18301008), (40, 16013382), (42, 15250840), (44, 14557620), (46, 13924680), (48, 13344485), (55, 11646096), (56, 11438130), (60, 10675588), (66, 9705080), (69, 9283120), (70, 9150504), (77, 8318640), (80, 8006691), (84, 7625420), (88, 7278810), (92, 6962340), (105, 6100336), (110, 5823048), (112, 5719065), (115, 5569872), (120, 5337794), (121, 5293680), (132, 4852540), (137, 4675440), (138, 4641560), (140, 4575252), (154, 4159320), (161, 3978480), (165, 3882032), (168, 3812710), (176, 3639405), (184, 3481170), (210, 3050168), (220, 2911524), (230, 2784936), (231, 2772880), (240, 2668897), (242, 2646840), (253, 2531760), (264, 2426270), (274, 2337720), (276, 2320780), (280, 2287626), (308, 2079660), (322, 1989240), (330, 1941016), (336, 1906355), (345, 1856624), (363, 1764560), (368, 1740585), (385, 1663728), (411, 1558480), (420, 1525084), (440, 1455762), (460, 1392468), (462, 1386440), (483, 1326160), (484, 1323420), (506, 1265880), (528, 1213135), (548, 1168860), (552, 1160390), (560, 1143813), (605, 1058736), (616, 1039830), (644, 994620), (660, 970508), (685, 935088), (690, 928312), (726, 882280), (759, 843920), (770, 831864), (805, 795696), (822, 779240), (840, 762542), (847, 756240), (880, 727881), (920, 696234), (924, 693220), (959, 667920), (966, 663080), (968, 661710), (1012, 632940), (1096, 584430), (1104, 580195), (1155, 554576), (1210, 529368), (1232, 519915), (1265, 506352), (1288, 497310), (1320, 485254), (1370, 467544), (1380, 464156), (1452, 441140), (1507, 425040), (1518, 421960), (1540, 415932), (1610, 397848), (1644, 389620), (1680, 381271), (1694, 378120), (1771, 361680), (1815, 352912), (1840, 348117), (1848, 346610), (1918, 333960), (1932, 331540), (1936, 330855), (2024, 316470), (2055, 311696), (2192, 292215), (2310, 277288), (2415, 265232), (2420, 264684), (2530, 253176), (2541, 252080), (2576, 248655), (2640, 242627), (2740, 233772), (2760, 232078), (2783, 230160), (2877, 222640), (2904, 220570), (3014, 212520), (3036, 210980), (3080, 207966), (3151, 203280), (3220, 198924), (3288, 194810), (3388, 189060), (3542, 180840), (3630, 176456), (3696, 173305), (3795, 168784), (3836, 166980), (3864, 165770), (4048, 158235), (4110, 155848), (4235, 151248), (4521, 141680), (4620, 138644), (4795, 133584), (4830, 132616), (4840, 132342), (5060, 126588), (5082, 126040), (5313, 120560), (5480, 116886), (5520, 116039), (5566, 115080), (5754, 111320), (5808, 110285), (6028, 106260), (6072, 105490), (6160, 103983), (6302, 101640), (6440, 99462), (6576, 97405), (6776, 94530), (7084, 90420), (7260, 88228), (7535, 85008), (7590, 84392), (7672, 83490), (7728, 82885), (8220, 77924), (8349, 76720), (8470, 75624), (8855, 72336), (9042, 70840), (9240, 69322), (9453, 67760), (9590, 66792), (9660, 66308), (9680, 66171), (10120, 63294), (10164, 63020), (10549, 60720), (10626, 60280), (10960, 58443), (11132, 57540), (11508, 55660), (12056, 53130), (12144, 52745), (12604, 50820), (12705, 50416), (12880, 49731), (13552, 47265), (13915, 46032), (14168, 45210), (14385, 44528), (14520, 44114), (15070, 42504), (15180, 42196), (15344, 41745), (15755, 40656), (16440, 38962), (16577, 38640), (16698, 38360), (16940, 37812), (17710, 36168), (18084, 35420), (18480, 34661), (18906, 33880), (19180, 33396), (19320, 33154), (19481, 32880), (20240, 31647), (20328, 31510), (21098, 30360), (21252, 30140), (22057, 29040), (22264, 28770), (22605, 28336), (23016, 27830), (24112, 26565), (25208, 25410)]