1999880960

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 288

約数和(自身を含む): 6060966912

約数和(自身を除く): 4061085952

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 103, 110, 112, 128, 140, 154, 160, 176, 197, 206, 220, 224, 256, 280, 308, 320, 352, 385, 394, 412, 440, 448, 515, 560, 616, 640, 704, 721, 770, 788, 824, 880, 896, 985, 1030, 1120, 1133, 1232, 1280, 1379, 1408, 1442, 1540, 1576, 1648, 1760, 1792, 1970, 2060, 2167, 2240, 2266, 2464, 2758, 2816, 2884, 3080, 3152, 3296, 3520, 3605, 3940, 4120, 4334, 4480, 4532, 4928, 5516, 5665, 5768, 6160, 6304, 6592, 6895, 7040, 7210, 7880, 7931, 8240, 8668, 8960, 9064, 9856, 10835, 11032, 11330, 11536, 12320, 12608, 13184, 13790, 14080, 14420, 15169, 15760, 15862, 16480, 17336, 18128, 19712, 20291, 21670, 22064, 22660, 23072, 24640, 25216, 26368, 27580, 28840, 30338, 31520, 31724, 32960, 34672, 36256, 39655, 40582, 43340, 44128, 45320, 46144, 49280, 50432, 55160, 57680, 60676, 63040, 63448, 65920, 69344, 72512, 75845, 79310, 81164, 86680, 88256, 90640, 92288, 98560, 101455, 110320, 115360, 121352, 126080, 126896, 131840, 138688, 142037, 145024, 151690, 158620, 162328, 173360, 176512, 181280, 184576, 202910, 220640, 223201, 230720, 242704, 252160, 253792, 277376, 284074, 290048, 303380, 317240, 324656, 346720, 353024, 362560, 405820, 441280, 446402, 461440, 485408, 507584, 554752, 568148, 606760, 634480, 649312, 693440, 710185, 725120, 811640, 882560, 892804, 922880, 970816, 1015168, 1116005, 1136296, 1213520, 1268960, 1298624, 1386880, 1420370, 1450240, 1562407, 1623280, 1765120, 1785608, 1941632, 2030336, 2232010, 2272592, 2427040, 2537920, 2597248, 2773760, 2840740, 3124814, 3246560, 3571216, 3883264, 4464020, 4545184, 4854080, 5075840, 5194496, 5681480, 6249628, 6493120, 7142432, 7812035, 8928040, 9090368, 9708160, 10151680, 11362960, 12499256, 12986240, 14284864, 15624070, 17856080, 18180736, 19416320, 22725920, 24998512, 25972480, 28569728, 31248140, 35712160, 36361472, 45451840, 49997024, 57139456, 62496280, 71424320, 90903680, 99994048, 124992560, 142848640, 181807360, 199988096, 249985120, 285697280, 399976192, 499970240, 999940480, 1999880960]

約数ペア:

[(1, 1999880960), (2, 999940480), (4, 499970240), (5, 399976192), (7, 285697280), (8, 249985120), (10, 199988096), (11, 181807360), (14, 142848640), (16, 124992560), (20, 99994048), (22, 90903680), (28, 71424320), (32, 62496280), (35, 57139456), (40, 49997024), (44, 45451840), (55, 36361472), (56, 35712160), (64, 31248140), (70, 28569728), (77, 25972480), (80, 24998512), (88, 22725920), (103, 19416320), (110, 18180736), (112, 17856080), (128, 15624070), (140, 14284864), (154, 12986240), (160, 12499256), (176, 11362960), (197, 10151680), (206, 9708160), (220, 9090368), (224, 8928040), (256, 7812035), (280, 7142432), (308, 6493120), (320, 6249628), (352, 5681480), (385, 5194496), (394, 5075840), (412, 4854080), (440, 4545184), (448, 4464020), (515, 3883264), (560, 3571216), (616, 3246560), (640, 3124814), (704, 2840740), (721, 2773760), (770, 2597248), (788, 2537920), (824, 2427040), (880, 2272592), (896, 2232010), (985, 2030336), (1030, 1941632), (1120, 1785608), (1133, 1765120), (1232, 1623280), (1280, 1562407), (1379, 1450240), (1408, 1420370), (1442, 1386880), (1540, 1298624), (1576, 1268960), (1648, 1213520), (1760, 1136296), (1792, 1116005), (1970, 1015168), (2060, 970816), (2167, 922880), (2240, 892804), (2266, 882560), (2464, 811640), (2758, 725120), (2816, 710185), (2884, 693440), (3080, 649312), (3152, 634480), (3296, 606760), (3520, 568148), (3605, 554752), (3940, 507584), (4120, 485408), (4334, 461440), (4480, 446402), (4532, 441280), (4928, 405820), (5516, 362560), (5665, 353024), (5768, 346720), (6160, 324656), (6304, 317240), (6592, 303380), (6895, 290048), (7040, 284074), (7210, 277376), (7880, 253792), (7931, 252160), (8240, 242704), (8668, 230720), (8960, 223201), (9064, 220640), (9856, 202910), (10835, 184576), (11032, 181280), (11330, 176512), (11536, 173360), (12320, 162328), (12608, 158620), (13184, 151690), (13790, 145024), (14080, 142037), (14420, 138688), (15169, 131840), (15760, 126896), (15862, 126080), (16480, 121352), (17336, 115360), (18128, 110320), (19712, 101455), (20291, 98560), (21670, 92288), (22064, 90640), (22660, 88256), (23072, 86680), (24640, 81164), (25216, 79310), (26368, 75845), (27580, 72512), (28840, 69344), (30338, 65920), (31520, 63448), (31724, 63040), (32960, 60676), (34672, 57680), (36256, 55160), (39655, 50432), (40582, 49280), (43340, 46144), (44128, 45320)]