81493440

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 224

約数和(自身を含む): 301776384

約数和(自身を除く): 220282944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 67, 70, 80, 84, 96, 105, 112, 120, 134, 140, 160, 168, 181, 192, 201, 210, 224, 240, 268, 280, 320, 335, 336, 362, 402, 420, 448, 469, 480, 536, 543, 560, 670, 672, 724, 804, 840, 905, 938, 960, 1005, 1072, 1086, 1120, 1267, 1340, 1344, 1407, 1448, 1608, 1680, 1810, 1876, 2010, 2144, 2172, 2240, 2345, 2534, 2680, 2715, 2814, 2896, 3216, 3360, 3620, 3752, 3801, 4020, 4288, 4344, 4690, 5068, 5360, 5430, 5628, 5792, 6335, 6432, 6720, 7035, 7240, 7504, 7602, 8040, 8688, 9380, 10136, 10720, 10860, 11256, 11584, 12127, 12670, 12864, 14070, 14480, 15008, 15204, 16080, 17376, 18760, 19005, 20272, 21440, 21720, 22512, 24254, 25340, 28140, 28960, 30016, 30408, 32160, 34752, 36381, 37520, 38010, 40544, 43440, 45024, 48508, 50680, 56280, 57920, 60635, 60816, 64320, 72762, 75040, 76020, 81088, 84889, 86880, 90048, 97016, 101360, 112560, 121270, 121632, 145524, 150080, 152040, 169778, 173760, 181905, 194032, 202720, 225120, 242540, 243264, 254667, 291048, 304080, 339556, 363810, 388064, 405440, 424445, 450240, 485080, 509334, 582096, 608160, 679112, 727620, 776128, 848890, 970160, 1018668, 1164192, 1216320, 1273335, 1358224, 1455240, 1697780, 1940320, 2037336, 2328384, 2546670, 2716448, 2910480, 3395560, 3880640, 4074672, 5093340, 5432896, 5820960, 6791120, 8149344, 10186680, 11641920, 13582240, 16298688, 20373360, 27164480, 40746720, 81493440]

約数ペア:

[(1, 81493440), (2, 40746720), (3, 27164480), (4, 20373360), (5, 16298688), (6, 13582240), (7, 11641920), (8, 10186680), (10, 8149344), (12, 6791120), (14, 5820960), (15, 5432896), (16, 5093340), (20, 4074672), (21, 3880640), (24, 3395560), (28, 2910480), (30, 2716448), (32, 2546670), (35, 2328384), (40, 2037336), (42, 1940320), (48, 1697780), (56, 1455240), (60, 1358224), (64, 1273335), (67, 1216320), (70, 1164192), (80, 1018668), (84, 970160), (96, 848890), (105, 776128), (112, 727620), (120, 679112), (134, 608160), (140, 582096), (160, 509334), (168, 485080), (181, 450240), (192, 424445), (201, 405440), (210, 388064), (224, 363810), (240, 339556), (268, 304080), (280, 291048), (320, 254667), (335, 243264), (336, 242540), (362, 225120), (402, 202720), (420, 194032), (448, 181905), (469, 173760), (480, 169778), (536, 152040), (543, 150080), (560, 145524), (670, 121632), (672, 121270), (724, 112560), (804, 101360), (840, 97016), (905, 90048), (938, 86880), (960, 84889), (1005, 81088), (1072, 76020), (1086, 75040), (1120, 72762), (1267, 64320), (1340, 60816), (1344, 60635), (1407, 57920), (1448, 56280), (1608, 50680), (1680, 48508), (1810, 45024), (1876, 43440), (2010, 40544), (2144, 38010), (2172, 37520), (2240, 36381), (2345, 34752), (2534, 32160), (2680, 30408), (2715, 30016), (2814, 28960), (2896, 28140), (3216, 25340), (3360, 24254), (3620, 22512), (3752, 21720), (3801, 21440), (4020, 20272), (4288, 19005), (4344, 18760), (4690, 17376), (5068, 16080), (5360, 15204), (5430, 15008), (5628, 14480), (5792, 14070), (6335, 12864), (6432, 12670), (6720, 12127), (7035, 11584), (7240, 11256), (7504, 10860), (7602, 10720), (8040, 10136), (8688, 9380)]