81116640

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1$

素因数の和:607

約数の個数: 240

約数和(自身を含む): 312847920

約数和(自身を除く): 231731280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 162, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 324, 330, 352, 360, 396, 405, 432, 440, 480, 495, 528, 540, 569, 594, 648, 660, 720, 792, 810, 864, 880, 891, 990, 1056, 1080, 1138, 1188, 1296, 1320, 1440, 1485, 1584, 1620, 1707, 1760, 1782, 1980, 2160, 2276, 2376, 2592, 2640, 2845, 2970, 3168, 3240, 3414, 3564, 3960, 4320, 4455, 4552, 4752, 5121, 5280, 5690, 5940, 6259, 6480, 6828, 7128, 7920, 8535, 8910, 9104, 9504, 10242, 11380, 11880, 12518, 12960, 13656, 14256, 15363, 15840, 17070, 17820, 18208, 18777, 20484, 22760, 23760, 25036, 25605, 27312, 28512, 30726, 31295, 34140, 35640, 37554, 40968, 45520, 46089, 47520, 50072, 51210, 54624, 56331, 61452, 62590, 68280, 71280, 75108, 76815, 81936, 91040, 92178, 93885, 100144, 102420, 112662, 122904, 125180, 136560, 142560, 150216, 153630, 163872, 168993, 184356, 187770, 200288, 204840, 225324, 230445, 245808, 250360, 273120, 281655, 300432, 307260, 337986, 368712, 375540, 409680, 450648, 460890, 491616, 500720, 506979, 563310, 600864, 614520, 675972, 737424, 751080, 819360, 844965, 901296, 921780, 1001440, 1013958, 1126620, 1229040, 1351944, 1474848, 1502160, 1689930, 1802592, 1843560, 2027916, 2253240, 2458080, 2534895, 2703888, 3004320, 3379860, 3687120, 4055832, 4506480, 5069790, 5407776, 6759720, 7374240, 8111664, 9012960, 10139580, 13519440, 16223328, 20279160, 27038880, 40558320, 81116640]

約数ペア:

[(1, 81116640), (2, 40558320), (3, 27038880), (4, 20279160), (5, 16223328), (6, 13519440), (8, 10139580), (9, 9012960), (10, 8111664), (11, 7374240), (12, 6759720), (15, 5407776), (16, 5069790), (18, 4506480), (20, 4055832), (22, 3687120), (24, 3379860), (27, 3004320), (30, 2703888), (32, 2534895), (33, 2458080), (36, 2253240), (40, 2027916), (44, 1843560), (45, 1802592), (48, 1689930), (54, 1502160), (55, 1474848), (60, 1351944), (66, 1229040), (72, 1126620), (80, 1013958), (81, 1001440), (88, 921780), (90, 901296), (96, 844965), (99, 819360), (108, 751080), (110, 737424), (120, 675972), (132, 614520), (135, 600864), (144, 563310), (160, 506979), (162, 500720), (165, 491616), (176, 460890), (180, 450648), (198, 409680), (216, 375540), (220, 368712), (240, 337986), (264, 307260), (270, 300432), (288, 281655), (297, 273120), (324, 250360), (330, 245808), (352, 230445), (360, 225324), (396, 204840), (405, 200288), (432, 187770), (440, 184356), (480, 168993), (495, 163872), (528, 153630), (540, 150216), (569, 142560), (594, 136560), (648, 125180), (660, 122904), (720, 112662), (792, 102420), (810, 100144), (864, 93885), (880, 92178), (891, 91040), (990, 81936), (1056, 76815), (1080, 75108), (1138, 71280), (1188, 68280), (1296, 62590), (1320, 61452), (1440, 56331), (1485, 54624), (1584, 51210), (1620, 50072), (1707, 47520), (1760, 46089), (1782, 45520), (1980, 40968), (2160, 37554), (2276, 35640), (2376, 34140), (2592, 31295), (2640, 30726), (2845, 28512), (2970, 27312), (3168, 25605), (3240, 25036), (3414, 23760), (3564, 22760), (3960, 20484), (4320, 18777), (4455, 18208), (4552, 17820), (4752, 17070), (5121, 15840), (5280, 15363), (5690, 14256), (5940, 13656), (6259, 12960), (6480, 12518), (6828, 11880), (7128, 11380), (7920, 10242), (8535, 9504), (8910, 9104)]