281431920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:288

約数の個数: 320

約数和(自身を含む): 1105929216

約数和(自身を除く): 824497296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 97, 105, 110, 112, 120, 132, 140, 154, 157, 165, 168, 176, 194, 210, 220, 231, 240, 264, 280, 291, 308, 314, 330, 336, 385, 388, 420, 440, 462, 471, 485, 528, 560, 582, 616, 628, 660, 679, 770, 776, 785, 840, 880, 924, 942, 970, 1067, 1099, 1155, 1164, 1232, 1256, 1320, 1358, 1455, 1540, 1552, 1570, 1680, 1727, 1848, 1884, 1940, 2037, 2134, 2198, 2310, 2328, 2355, 2512, 2640, 2716, 2910, 3080, 3140, 3201, 3297, 3395, 3454, 3696, 3768, 3880, 4074, 4268, 4396, 4620, 4656, 4710, 5181, 5335, 5432, 5495, 5820, 6160, 6280, 6402, 6594, 6790, 6908, 7469, 7536, 7760, 8148, 8536, 8635, 8792, 9240, 9420, 10185, 10362, 10670, 10864, 10990, 11640, 12089, 12560, 12804, 13188, 13580, 13816, 14938, 15229, 16005, 16296, 16485, 17072, 17270, 17584, 18480, 18840, 20370, 20724, 21340, 21980, 22407, 23280, 24178, 25608, 25905, 26376, 27160, 27632, 29876, 30458, 32010, 32592, 32970, 34540, 36267, 37345, 37680, 40740, 41448, 42680, 43960, 44814, 45687, 48356, 51216, 51810, 52752, 54320, 59752, 60445, 60916, 64020, 65940, 69080, 72534, 74690, 76145, 81480, 82896, 85360, 87920, 89628, 91374, 96712, 103620, 106603, 112035, 119504, 120890, 121832, 128040, 131880, 138160, 145068, 149380, 152290, 162960, 167519, 179256, 181335, 182748, 193424, 207240, 213206, 224070, 228435, 241780, 243664, 256080, 263760, 290136, 298760, 304580, 319809, 335038, 358512, 362670, 365496, 414480, 426412, 448140, 456870, 483560, 502557, 533015, 580272, 597520, 609160, 639618, 670076, 725340, 730992, 837595, 852824, 896280, 913740, 967120, 1005114, 1066030, 1172633, 1218320, 1279236, 1340152, 1450680, 1599045, 1675190, 1705648, 1792560, 1827480, 2010228, 2132060, 2345266, 2512785, 2558472, 2680304, 2901360, 3198090, 3350380, 3517899, 3654960, 4020456, 4264120, 4690532, 5025570, 5116944, 5863165, 6396180, 6700760, 7035798, 8040912, 8528240, 9381064, 10051140, 11726330, 12792360, 13401520, 14071596, 17589495, 18762128, 20102280, 23452660, 25584720, 28143192, 35178990, 40204560, 46905320, 56286384, 70357980, 93810640, 140715960, 281431920]

約数ペア:

[(1, 281431920), (2, 140715960), (3, 93810640), (4, 70357980), (5, 56286384), (6, 46905320), (7, 40204560), (8, 35178990), (10, 28143192), (11, 25584720), (12, 23452660), (14, 20102280), (15, 18762128), (16, 17589495), (20, 14071596), (21, 13401520), (22, 12792360), (24, 11726330), (28, 10051140), (30, 9381064), (33, 8528240), (35, 8040912), (40, 7035798), (42, 6700760), (44, 6396180), (48, 5863165), (55, 5116944), (56, 5025570), (60, 4690532), (66, 4264120), (70, 4020456), (77, 3654960), (80, 3517899), (84, 3350380), (88, 3198090), (97, 2901360), (105, 2680304), (110, 2558472), (112, 2512785), (120, 2345266), (132, 2132060), (140, 2010228), (154, 1827480), (157, 1792560), (165, 1705648), (168, 1675190), (176, 1599045), (194, 1450680), (210, 1340152), (220, 1279236), (231, 1218320), (240, 1172633), (264, 1066030), (280, 1005114), (291, 967120), (308, 913740), (314, 896280), (330, 852824), (336, 837595), (385, 730992), (388, 725340), (420, 670076), (440, 639618), (462, 609160), (471, 597520), (485, 580272), (528, 533015), (560, 502557), (582, 483560), (616, 456870), (628, 448140), (660, 426412), (679, 414480), (770, 365496), (776, 362670), (785, 358512), (840, 335038), (880, 319809), (924, 304580), (942, 298760), (970, 290136), (1067, 263760), (1099, 256080), (1155, 243664), (1164, 241780), (1232, 228435), (1256, 224070), (1320, 213206), (1358, 207240), (1455, 193424), (1540, 182748), (1552, 181335), (1570, 179256), (1680, 167519), (1727, 162960), (1848, 152290), (1884, 149380), (1940, 145068), (2037, 138160), (2134, 131880), (2198, 128040), (2310, 121832), (2328, 120890), (2355, 119504), (2512, 112035), (2640, 106603), (2716, 103620), (2910, 96712), (3080, 91374), (3140, 89628), (3201, 87920), (3297, 85360), (3395, 82896), (3454, 81480), (3696, 76145), (3768, 74690), (3880, 72534), (4074, 69080), (4268, 65940), (4396, 64020), (4620, 60916), (4656, 60445), (4710, 59752), (5181, 54320), (5335, 52752), (5432, 51810), (5495, 51216), (5820, 48356), (6160, 45687), (6280, 44814), (6402, 43960), (6594, 42680), (6790, 41448), (6908, 40740), (7469, 37680), (7536, 37345), (7760, 36267), (8148, 34540), (8536, 32970), (8635, 32592), (8792, 32010), (9240, 30458), (9420, 29876), (10185, 27632), (10362, 27160), (10670, 26376), (10864, 25905), (10990, 25608), (11640, 24178), (12089, 23280), (12560, 22407), (12804, 21980), (13188, 21340), (13580, 20724), (13816, 20370), (14938, 18840), (15229, 18480), (16005, 17584), (16296, 17270), (16485, 17072)]