81279360

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 192

約数和(自身を含む): 285461280

約数和(自身を除く): 204181920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 103, 120, 128, 137, 144, 160, 180, 192, 206, 240, 274, 288, 309, 320, 360, 384, 411, 412, 480, 515, 548, 576, 618, 640, 685, 720, 822, 824, 927, 960, 1030, 1096, 1152, 1233, 1236, 1370, 1440, 1545, 1644, 1648, 1854, 1920, 2055, 2060, 2192, 2466, 2472, 2740, 2880, 3090, 3288, 3296, 3708, 4110, 4120, 4384, 4635, 4932, 4944, 5480, 5760, 6165, 6180, 6576, 6592, 7416, 8220, 8240, 8768, 9270, 9864, 9888, 10960, 12330, 12360, 13152, 13184, 14111, 14832, 16440, 16480, 17536, 18540, 19728, 19776, 21920, 24660, 24720, 26304, 28222, 29664, 32880, 32960, 37080, 39456, 39552, 42333, 43840, 49320, 49440, 52608, 56444, 59328, 65760, 65920, 70555, 74160, 78912, 84666, 87680, 98640, 98880, 112888, 118656, 126999, 131520, 141110, 148320, 157824, 169332, 197280, 197760, 211665, 225776, 253998, 263040, 282220, 296640, 338664, 394560, 423330, 451552, 507996, 564440, 593280, 634995, 677328, 789120, 846660, 903104, 1015992, 1128880, 1269990, 1354656, 1693320, 1806208, 2031984, 2257760, 2539980, 2709312, 3386640, 4063968, 4515520, 5079960, 5418624, 6773280, 8127936, 9031040, 10159920, 13546560, 16255872, 20319840, 27093120, 40639680, 81279360]

約数ペア:

[(1, 81279360), (2, 40639680), (3, 27093120), (4, 20319840), (5, 16255872), (6, 13546560), (8, 10159920), (9, 9031040), (10, 8127936), (12, 6773280), (15, 5418624), (16, 5079960), (18, 4515520), (20, 4063968), (24, 3386640), (30, 2709312), (32, 2539980), (36, 2257760), (40, 2031984), (45, 1806208), (48, 1693320), (60, 1354656), (64, 1269990), (72, 1128880), (80, 1015992), (90, 903104), (96, 846660), (103, 789120), (120, 677328), (128, 634995), (137, 593280), (144, 564440), (160, 507996), (180, 451552), (192, 423330), (206, 394560), (240, 338664), (274, 296640), (288, 282220), (309, 263040), (320, 253998), (360, 225776), (384, 211665), (411, 197760), (412, 197280), (480, 169332), (515, 157824), (548, 148320), (576, 141110), (618, 131520), (640, 126999), (685, 118656), (720, 112888), (822, 98880), (824, 98640), (927, 87680), (960, 84666), (1030, 78912), (1096, 74160), (1152, 70555), (1233, 65920), (1236, 65760), (1370, 59328), (1440, 56444), (1545, 52608), (1644, 49440), (1648, 49320), (1854, 43840), (1920, 42333), (2055, 39552), (2060, 39456), (2192, 37080), (2466, 32960), (2472, 32880), (2740, 29664), (2880, 28222), (3090, 26304), (3288, 24720), (3296, 24660), (3708, 21920), (4110, 19776), (4120, 19728), (4384, 18540), (4635, 17536), (4932, 16480), (4944, 16440), (5480, 14832), (5760, 14111), (6165, 13184), (6180, 13152), (6576, 12360), (6592, 12330), (7416, 10960), (8220, 9888), (8240, 9864), (8768, 9270)]