81362880

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 280

約数和(自身を含む): 300209712

約数和(自身を除く): 218846832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 43, 45, 48, 54, 60, 64, 72, 73, 80, 81, 86, 90, 96, 108, 120, 129, 135, 144, 146, 160, 162, 172, 180, 192, 215, 216, 219, 240, 258, 270, 288, 292, 320, 324, 344, 360, 365, 387, 405, 430, 432, 438, 480, 516, 540, 576, 584, 645, 648, 657, 688, 720, 730, 774, 810, 860, 864, 876, 960, 1032, 1080, 1095, 1161, 1168, 1290, 1296, 1314, 1376, 1440, 1460, 1548, 1620, 1720, 1728, 1752, 1935, 1971, 2064, 2160, 2190, 2322, 2336, 2580, 2592, 2628, 2752, 2880, 2920, 3096, 3139, 3240, 3285, 3440, 3483, 3504, 3870, 3942, 4128, 4320, 4380, 4644, 4672, 5160, 5184, 5256, 5805, 5840, 5913, 6192, 6278, 6480, 6570, 6880, 6966, 7008, 7740, 7884, 8256, 8640, 8760, 9288, 9417, 9855, 10320, 10512, 11610, 11680, 11826, 12384, 12556, 12960, 13140, 13760, 13932, 14016, 15480, 15695, 15768, 17415, 17520, 18576, 18834, 19710, 20640, 21024, 23220, 23360, 23652, 24768, 25112, 25920, 26280, 27864, 28251, 29565, 30960, 31390, 31536, 34830, 35040, 37152, 37668, 39420, 41280, 42048, 46440, 47085, 47304, 50224, 52560, 55728, 56502, 59130, 61920, 62780, 63072, 69660, 70080, 74304, 75336, 78840, 84753, 92880, 94170, 94608, 100448, 105120, 111456, 113004, 118260, 123840, 125560, 126144, 139320, 141255, 150672, 157680, 169506, 185760, 188340, 189216, 200896, 210240, 222912, 226008, 236520, 251120, 254259, 278640, 282510, 301344, 315360, 339012, 371520, 376680, 378432, 423765, 452016, 473040, 502240, 508518, 557280, 565020, 602688, 630720, 678024, 753360, 847530, 904032, 946080, 1004480, 1017036, 1114560, 1130040, 1271295, 1356048, 1506720, 1695060, 1808064, 1892160, 2034072, 2260080, 2542590, 2712096, 3013440, 3390120, 4068144, 4520160, 5085180, 5424192, 6780240, 8136288, 9040320, 10170360, 13560480, 16272576, 20340720, 27120960, 40681440, 81362880]

約数ペア:

[(1, 81362880), (2, 40681440), (3, 27120960), (4, 20340720), (5, 16272576), (6, 13560480), (8, 10170360), (9, 9040320), (10, 8136288), (12, 6780240), (15, 5424192), (16, 5085180), (18, 4520160), (20, 4068144), (24, 3390120), (27, 3013440), (30, 2712096), (32, 2542590), (36, 2260080), (40, 2034072), (43, 1892160), (45, 1808064), (48, 1695060), (54, 1506720), (60, 1356048), (64, 1271295), (72, 1130040), (73, 1114560), (80, 1017036), (81, 1004480), (86, 946080), (90, 904032), (96, 847530), (108, 753360), (120, 678024), (129, 630720), (135, 602688), (144, 565020), (146, 557280), (160, 508518), (162, 502240), (172, 473040), (180, 452016), (192, 423765), (215, 378432), (216, 376680), (219, 371520), (240, 339012), (258, 315360), (270, 301344), (288, 282510), (292, 278640), (320, 254259), (324, 251120), (344, 236520), (360, 226008), (365, 222912), (387, 210240), (405, 200896), (430, 189216), (432, 188340), (438, 185760), (480, 169506), (516, 157680), (540, 150672), (576, 141255), (584, 139320), (645, 126144), (648, 125560), (657, 123840), (688, 118260), (720, 113004), (730, 111456), (774, 105120), (810, 100448), (860, 94608), (864, 94170), (876, 92880), (960, 84753), (1032, 78840), (1080, 75336), (1095, 74304), (1161, 70080), (1168, 69660), (1290, 63072), (1296, 62780), (1314, 61920), (1376, 59130), (1440, 56502), (1460, 55728), (1548, 52560), (1620, 50224), (1720, 47304), (1728, 47085), (1752, 46440), (1935, 42048), (1971, 41280), (2064, 39420), (2160, 37668), (2190, 37152), (2322, 35040), (2336, 34830), (2580, 31536), (2592, 31390), (2628, 30960), (2752, 29565), (2880, 28251), (2920, 27864), (3096, 26280), (3139, 25920), (3240, 25112), (3285, 24768), (3440, 23652), (3483, 23360), (3504, 23220), (3870, 21024), (3942, 20640), (4128, 19710), (4320, 18834), (4380, 18576), (4644, 17520), (4672, 17415), (5160, 15768), (5184, 15695), (5256, 15480), (5805, 14016), (5840, 13932), (5913, 13760), (6192, 13140), (6278, 12960), (6480, 12556), (6570, 12384), (6880, 11826), (6966, 11680), (7008, 11610), (7740, 10512), (7884, 10320), (8256, 9855), (8640, 9417), (8760, 9288)]