28745280

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{1109}}^1$

素因数の和:1138

約数の個数: 140

約数和(自身を含む): 102344220

約数和(自身を除く): 73598940

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, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 864, 960, 1080, 1109, 1296, 1440, 1620, 1728, 2160, 2218, 2592, 2880, 3240, 3327, 4320, 4436, 5184, 5545, 6480, 6654, 8640, 8872, 9981, 11090, 12960, 13308, 16635, 17744, 19962, 22180, 25920, 26616, 29943, 33270, 35488, 39924, 44360, 49905, 53232, 59886, 66540, 70976, 79848, 88720, 89829, 99810, 106464, 119772, 133080, 149715, 159696, 177440, 179658, 199620, 212928, 239544, 266160, 299430, 319392, 354880, 359316, 399240, 449145, 479088, 532320, 598860, 638784, 718632, 798480, 898290, 958176, 1064640, 1197720, 1437264, 1596960, 1796580, 1916352, 2395440, 2874528, 3193920, 3593160, 4790880, 5749056, 7186320, 9581760, 14372640, 28745280]

約数ペア:

[(1, 28745280), (2, 14372640), (3, 9581760), (4, 7186320), (5, 5749056), (6, 4790880), (8, 3593160), (9, 3193920), (10, 2874528), (12, 2395440), (15, 1916352), (16, 1796580), (18, 1596960), (20, 1437264), (24, 1197720), (27, 1064640), (30, 958176), (32, 898290), (36, 798480), (40, 718632), (45, 638784), (48, 598860), (54, 532320), (60, 479088), (64, 449145), (72, 399240), (80, 359316), (81, 354880), (90, 319392), (96, 299430), (108, 266160), (120, 239544), (135, 212928), (144, 199620), (160, 179658), (162, 177440), (180, 159696), (192, 149715), (216, 133080), (240, 119772), (270, 106464), (288, 99810), (320, 89829), (324, 88720), (360, 79848), (405, 70976), (432, 66540), (480, 59886), (540, 53232), (576, 49905), (648, 44360), (720, 39924), (810, 35488), (864, 33270), (960, 29943), (1080, 26616), (1109, 25920), (1296, 22180), (1440, 19962), (1620, 17744), (1728, 16635), (2160, 13308), (2218, 12960), (2592, 11090), (2880, 9981), (3240, 8872), (3327, 8640), (4320, 6654), (4436, 6480), (5184, 5545)]