20483280

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 200

約数和(自身を含む): 74269800

約数和(自身を除く): 53786520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 81, 87, 90, 108, 109, 116, 120, 135, 144, 145, 162, 174, 180, 216, 218, 232, 240, 261, 270, 290, 324, 327, 348, 360, 405, 432, 435, 436, 464, 522, 540, 545, 580, 648, 654, 696, 720, 783, 810, 870, 872, 981, 1044, 1080, 1090, 1160, 1296, 1305, 1308, 1392, 1566, 1620, 1635, 1740, 1744, 1962, 2088, 2160, 2180, 2320, 2349, 2610, 2616, 2943, 3132, 3161, 3240, 3270, 3480, 3915, 3924, 4176, 4360, 4698, 4905, 5220, 5232, 5886, 6264, 6322, 6480, 6540, 6960, 7830, 7848, 8720, 8829, 9396, 9483, 9810, 10440, 11745, 11772, 12528, 12644, 13080, 14715, 15660, 15696, 15805, 17658, 18792, 18966, 19620, 20880, 23490, 23544, 25288, 26160, 28449, 29430, 31320, 31610, 35316, 37584, 37932, 39240, 44145, 46980, 47088, 47415, 50576, 56898, 58860, 62640, 63220, 70632, 75864, 78480, 85347, 88290, 93960, 94830, 113796, 117720, 126440, 141264, 142245, 151728, 170694, 176580, 187920, 189660, 227592, 235440, 252880, 256041, 284490, 341388, 353160, 379320, 426735, 455184, 512082, 568980, 682776, 706320, 758640, 853470, 1024164, 1137960, 1280205, 1365552, 1706940, 2048328, 2275920, 2560410, 3413880, 4096656, 5120820, 6827760, 10241640, 20483280]

約数ペア:

[(1, 20483280), (2, 10241640), (3, 6827760), (4, 5120820), (5, 4096656), (6, 3413880), (8, 2560410), (9, 2275920), (10, 2048328), (12, 1706940), (15, 1365552), (16, 1280205), (18, 1137960), (20, 1024164), (24, 853470), (27, 758640), (29, 706320), (30, 682776), (36, 568980), (40, 512082), (45, 455184), (48, 426735), (54, 379320), (58, 353160), (60, 341388), (72, 284490), (80, 256041), (81, 252880), (87, 235440), (90, 227592), (108, 189660), (109, 187920), (116, 176580), (120, 170694), (135, 151728), (144, 142245), (145, 141264), (162, 126440), (174, 117720), (180, 113796), (216, 94830), (218, 93960), (232, 88290), (240, 85347), (261, 78480), (270, 75864), (290, 70632), (324, 63220), (327, 62640), (348, 58860), (360, 56898), (405, 50576), (432, 47415), (435, 47088), (436, 46980), (464, 44145), (522, 39240), (540, 37932), (545, 37584), (580, 35316), (648, 31610), (654, 31320), (696, 29430), (720, 28449), (783, 26160), (810, 25288), (870, 23544), (872, 23490), (981, 20880), (1044, 19620), (1080, 18966), (1090, 18792), (1160, 17658), (1296, 15805), (1305, 15696), (1308, 15660), (1392, 14715), (1566, 13080), (1620, 12644), (1635, 12528), (1740, 11772), (1744, 11745), (1962, 10440), (2088, 9810), (2160, 9483), (2180, 9396), (2320, 8829), (2349, 8720), (2610, 7848), (2616, 7830), (2943, 6960), (3132, 6540), (3161, 6480), (3240, 6322), (3270, 6264), (3480, 5886), (3915, 5232), (3924, 5220), (4176, 4905), (4360, 4698)]