21558960

素因数分解:

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

素因数の和:1137

約数の個数: 120

約数和(自身を含む): 75151440

約数和(自身を除く): 53592480

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, 810, 972, 1080, 1109, 1215, 1296, 1620, 1944, 2160, 2218, 2430, 3240, 3327, 3888, 4436, 4860, 5545, 6480, 6654, 8872, 9720, 9981, 11090, 13308, 16635, 17744, 19440, 19962, 22180, 26616, 29943, 33270, 39924, 44360, 49905, 53232, 59886, 66540, 79848, 88720, 89829, 99810, 119772, 133080, 149715, 159696, 179658, 199620, 239544, 266160, 269487, 299430, 359316, 399240, 449145, 479088, 538974, 598860, 718632, 798480, 898290, 1077948, 1197720, 1347435, 1437264, 1796580, 2155896, 2395440, 2694870, 3593160, 4311792, 5389740, 7186320, 10779480, 21558960]

約数ペア:

[(1, 21558960), (2, 10779480), (3, 7186320), (4, 5389740), (5, 4311792), (6, 3593160), (8, 2694870), (9, 2395440), (10, 2155896), (12, 1796580), (15, 1437264), (16, 1347435), (18, 1197720), (20, 1077948), (24, 898290), (27, 798480), (30, 718632), (36, 598860), (40, 538974), (45, 479088), (48, 449145), (54, 399240), (60, 359316), (72, 299430), (80, 269487), (81, 266160), (90, 239544), (108, 199620), (120, 179658), (135, 159696), (144, 149715), (162, 133080), (180, 119772), (216, 99810), (240, 89829), (243, 88720), (270, 79848), (324, 66540), (360, 59886), (405, 53232), (432, 49905), (486, 44360), (540, 39924), (648, 33270), (720, 29943), (810, 26616), (972, 22180), (1080, 19962), (1109, 19440), (1215, 17744), (1296, 16635), (1620, 13308), (1944, 11090), (2160, 9981), (2218, 9720), (2430, 8872), (3240, 6654), (3327, 6480), (3888, 5545), (4436, 4860)]