51379920

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{881}}^1$

素因数の和:912

約数の個数: 140

約数和(自身を含む): 179308836

約数和(自身を除く): 127928916

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 729, 810, 881, 972, 1080, 1215, 1296, 1458, 1620, 1762, 1944, 2160, 2430, 2643, 2916, 3240, 3524, 3645, 3888, 4405, 4860, 5286, 5832, 6480, 7048, 7290, 7929, 8810, 9720, 10572, 11664, 13215, 14096, 14580, 15858, 17620, 19440, 21144, 23787, 26430, 29160, 31716, 35240, 39645, 42288, 47574, 52860, 58320, 63432, 70480, 71361, 79290, 95148, 105720, 118935, 126864, 142722, 158580, 190296, 211440, 214083, 237870, 285444, 317160, 356805, 380592, 428166, 475740, 570888, 634320, 642249, 713610, 856332, 951480, 1070415, 1141776, 1284498, 1427220, 1712664, 1902960, 2140830, 2568996, 2854440, 3211245, 3425328, 4281660, 5137992, 5708880, 6422490, 8563320, 10275984, 12844980, 17126640, 25689960, 51379920]

約数ペア:

[(1, 51379920), (2, 25689960), (3, 17126640), (4, 12844980), (5, 10275984), (6, 8563320), (8, 6422490), (9, 5708880), (10, 5137992), (12, 4281660), (15, 3425328), (16, 3211245), (18, 2854440), (20, 2568996), (24, 2140830), (27, 1902960), (30, 1712664), (36, 1427220), (40, 1284498), (45, 1141776), (48, 1070415), (54, 951480), (60, 856332), (72, 713610), (80, 642249), (81, 634320), (90, 570888), (108, 475740), (120, 428166), (135, 380592), (144, 356805), (162, 317160), (180, 285444), (216, 237870), (240, 214083), (243, 211440), (270, 190296), (324, 158580), (360, 142722), (405, 126864), (432, 118935), (486, 105720), (540, 95148), (648, 79290), (720, 71361), (729, 70480), (810, 63432), (881, 58320), (972, 52860), (1080, 47574), (1215, 42288), (1296, 39645), (1458, 35240), (1620, 31716), (1762, 29160), (1944, 26430), (2160, 23787), (2430, 21144), (2643, 19440), (2916, 17620), (3240, 15858), (3524, 14580), (3645, 14096), (3888, 13215), (4405, 11664), (4860, 10572), (5286, 9720), (5832, 8810), (6480, 7929), (7048, 7290)]