1640027520

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{887}}^1$

素因数の和:1022

約数の個数: 256

約数和(自身を含む): 5869324800

約数和(自身を除く): 4229297280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 107, 108, 120, 128, 135, 144, 160, 180, 192, 214, 216, 240, 270, 288, 320, 321, 360, 384, 428, 432, 480, 535, 540, 576, 640, 642, 720, 856, 864, 887, 960, 963, 1070, 1080, 1152, 1284, 1440, 1605, 1712, 1728, 1774, 1920, 1926, 2140, 2160, 2568, 2661, 2880, 2889, 3210, 3424, 3456, 3548, 3852, 4280, 4320, 4435, 4815, 5136, 5322, 5760, 5778, 6420, 6848, 7096, 7704, 7983, 8560, 8640, 8870, 9630, 10272, 10644, 11556, 12840, 13305, 13696, 14192, 14445, 15408, 15966, 17120, 17280, 17740, 19260, 20544, 21288, 23112, 23949, 25680, 26610, 28384, 28890, 30816, 31932, 34240, 35480, 38520, 39915, 41088, 42576, 46224, 47898, 51360, 53220, 56768, 57780, 61632, 63864, 68480, 70960, 77040, 79830, 85152, 92448, 94909, 95796, 102720, 106440, 113536, 115560, 119745, 123264, 127728, 141920, 154080, 159660, 170304, 184896, 189818, 191592, 205440, 212880, 231120, 239490, 255456, 283840, 284727, 308160, 319320, 340608, 369792, 379636, 383184, 425760, 462240, 474545, 478980, 510912, 567680, 569454, 616320, 638640, 759272, 766368, 851520, 854181, 924480, 949090, 957960, 1021824, 1138908, 1277280, 1423635, 1518544, 1532736, 1703040, 1708362, 1848960, 1898180, 1915920, 2277816, 2554560, 2562543, 2847270, 3037088, 3065472, 3416724, 3796360, 3831840, 4270905, 4555632, 5109120, 5125086, 5694540, 6074176, 6833448, 7592720, 7663680, 8541810, 9111264, 10250172, 11389080, 12148352, 12812715, 13666896, 15185440, 15327360, 17083620, 18222528, 20500344, 22778160, 25625430, 27333792, 30370880, 34167240, 36445056, 41000688, 45556320, 51250860, 54667584, 60741760, 68334480, 82001376, 91112640, 102501720, 109335168, 136668960, 164002752, 182225280, 205003440, 273337920, 328005504, 410006880, 546675840, 820013760, 1640027520]

約数ペア:

[(1, 1640027520), (2, 820013760), (3, 546675840), (4, 410006880), (5, 328005504), (6, 273337920), (8, 205003440), (9, 182225280), (10, 164002752), (12, 136668960), (15, 109335168), (16, 102501720), (18, 91112640), (20, 82001376), (24, 68334480), (27, 60741760), (30, 54667584), (32, 51250860), (36, 45556320), (40, 41000688), (45, 36445056), (48, 34167240), (54, 30370880), (60, 27333792), (64, 25625430), (72, 22778160), (80, 20500344), (90, 18222528), (96, 17083620), (107, 15327360), (108, 15185440), (120, 13666896), (128, 12812715), (135, 12148352), (144, 11389080), (160, 10250172), (180, 9111264), (192, 8541810), (214, 7663680), (216, 7592720), (240, 6833448), (270, 6074176), (288, 5694540), (320, 5125086), (321, 5109120), (360, 4555632), (384, 4270905), (428, 3831840), (432, 3796360), (480, 3416724), (535, 3065472), (540, 3037088), (576, 2847270), (640, 2562543), (642, 2554560), (720, 2277816), (856, 1915920), (864, 1898180), (887, 1848960), (960, 1708362), (963, 1703040), (1070, 1532736), (1080, 1518544), (1152, 1423635), (1284, 1277280), (1440, 1138908), (1605, 1021824), (1712, 957960), (1728, 949090), (1774, 924480), (1920, 854181), (1926, 851520), (2140, 766368), (2160, 759272), (2568, 638640), (2661, 616320), (2880, 569454), (2889, 567680), (3210, 510912), (3424, 478980), (3456, 474545), (3548, 462240), (3852, 425760), (4280, 383184), (4320, 379636), (4435, 369792), (4815, 340608), (5136, 319320), (5322, 308160), (5760, 284727), (5778, 283840), (6420, 255456), (6848, 239490), (7096, 231120), (7704, 212880), (7983, 205440), (8560, 191592), (8640, 189818), (8870, 184896), (9630, 170304), (10272, 159660), (10644, 154080), (11556, 141920), (12840, 127728), (13305, 123264), (13696, 119745), (14192, 115560), (14445, 113536), (15408, 106440), (15966, 102720), (17120, 95796), (17280, 94909), (17740, 92448), (19260, 85152), (20544, 79830), (21288, 77040), (23112, 70960), (23949, 68480), (25680, 63864), (26610, 61632), (28384, 57780), (28890, 56768), (30816, 53220), (31932, 51360), (34240, 47898), (35480, 46224), (38520, 42576), (39915, 41088)]