81349920

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{6277}}^1$

素因数の和:6304

約数の個数: 120

約数和(自身を含む): 287143164

約数和(自身を除く): 205793244

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6277, 6480, 12554, 12960, 18831, 25108, 31385, 37662, 50216, 56493, 62770, 75324, 94155, 100432, 112986, 125540, 150648, 169479, 188310, 200864, 225972, 251080, 282465, 301296, 338958, 376620, 451944, 502160, 508437, 564930, 602592, 677916, 753240, 847395, 903888, 1004320, 1016874, 1129860, 1355832, 1506480, 1694790, 1807776, 2033748, 2259720, 2542185, 2711664, 3012960, 3389580, 4067496, 4519440, 5084370, 5423328, 6779160, 8134992, 9038880, 10168740, 13558320, 16269984, 20337480, 27116640, 40674960, 81349920]

約数ペア:

[(1, 81349920), (2, 40674960), (3, 27116640), (4, 20337480), (5, 16269984), (6, 13558320), (8, 10168740), (9, 9038880), (10, 8134992), (12, 6779160), (15, 5423328), (16, 5084370), (18, 4519440), (20, 4067496), (24, 3389580), (27, 3012960), (30, 2711664), (32, 2542185), (36, 2259720), (40, 2033748), (45, 1807776), (48, 1694790), (54, 1506480), (60, 1355832), (72, 1129860), (80, 1016874), (81, 1004320), (90, 903888), (96, 847395), (108, 753240), (120, 677916), (135, 602592), (144, 564930), (160, 508437), (162, 502160), (180, 451944), (216, 376620), (240, 338958), (270, 301296), (288, 282465), (324, 251080), (360, 225972), (405, 200864), (432, 188310), (480, 169479), (540, 150648), (648, 125540), (720, 112986), (810, 100432), (864, 94155), (1080, 75324), (1296, 62770), (1440, 56493), (1620, 50216), (2160, 37662), (2592, 31385), (3240, 25108), (4320, 18831), (6277, 12960), (6480, 12554)]