1281140640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68437}}^1$

素因数の和:68471

約数の個数: 144

約数和(自身を含む): 4708260648

約数和(自身を除く): 3427120008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 18720, 68437, 136874, 205311, 273748, 342185, 410622, 547496, 615933, 684370, 821244, 889681, 1026555, 1094992, 1231866, 1368740, 1642488, 1779362, 2053110, 2189984, 2463732, 2669043, 2737480, 3079665, 3284976, 3558724, 4106220, 4448405, 4927464, 5338086, 5474960, 6159330, 6569952, 7117448, 8007129, 8212440, 8896810, 9854928, 10676172, 10949920, 12318660, 13345215, 14234896, 16014258, 16424880, 17793620, 19709856, 21352344, 24637320, 26690430, 28469792, 32028516, 32849760, 35587240, 40035645, 42704688, 49274640, 53380860, 64057032, 71174480, 80071290, 85409376, 98549280, 106761720, 128114064, 142348960, 160142580, 213523440, 256228128, 320285160, 427046880, 640570320, 1281140640]

約数ペア:

[(1, 1281140640), (2, 640570320), (3, 427046880), (4, 320285160), (5, 256228128), (6, 213523440), (8, 160142580), (9, 142348960), (10, 128114064), (12, 106761720), (13, 98549280), (15, 85409376), (16, 80071290), (18, 71174480), (20, 64057032), (24, 53380860), (26, 49274640), (30, 42704688), (32, 40035645), (36, 35587240), (39, 32849760), (40, 32028516), (45, 28469792), (48, 26690430), (52, 24637320), (60, 21352344), (65, 19709856), (72, 17793620), (78, 16424880), (80, 16014258), (90, 14234896), (96, 13345215), (104, 12318660), (117, 10949920), (120, 10676172), (130, 9854928), (144, 8896810), (156, 8212440), (160, 8007129), (180, 7117448), (195, 6569952), (208, 6159330), (234, 5474960), (240, 5338086), (260, 4927464), (288, 4448405), (312, 4106220), (360, 3558724), (390, 3284976), (416, 3079665), (468, 2737480), (480, 2669043), (520, 2463732), (585, 2189984), (624, 2053110), (720, 1779362), (780, 1642488), (936, 1368740), (1040, 1231866), (1170, 1094992), (1248, 1026555), (1440, 889681), (1560, 821244), (1872, 684370), (2080, 615933), (2340, 547496), (3120, 410622), (3744, 342185), (4680, 273748), (6240, 205311), (9360, 136874), (18720, 68437)]