20914320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:293

約数の個数: 160

約数和(自身を含む): 75709440

約数和(自身を除く): 54795120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 59, 60, 70, 80, 84, 105, 112, 118, 120, 140, 168, 177, 210, 211, 236, 240, 280, 295, 336, 354, 413, 420, 422, 472, 560, 590, 633, 708, 826, 840, 844, 885, 944, 1055, 1180, 1239, 1266, 1416, 1477, 1652, 1680, 1688, 1770, 2065, 2110, 2360, 2478, 2532, 2832, 2954, 3165, 3304, 3376, 3540, 4130, 4220, 4431, 4720, 4956, 5064, 5908, 6195, 6330, 6608, 7080, 7385, 8260, 8440, 8862, 9912, 10128, 11816, 12390, 12449, 12660, 14160, 14770, 16520, 16880, 17724, 19824, 22155, 23632, 24780, 24898, 25320, 29540, 33040, 35448, 37347, 44310, 49560, 49796, 50640, 59080, 62245, 70896, 74694, 87143, 88620, 99120, 99592, 118160, 124490, 149388, 174286, 177240, 186735, 199184, 248980, 261429, 298776, 348572, 354480, 373470, 435715, 497960, 522858, 597552, 697144, 746940, 871430, 995920, 1045716, 1307145, 1394288, 1493880, 1742860, 2091432, 2614290, 2987760, 3485720, 4182864, 5228580, 6971440, 10457160, 20914320]

約数ペア:

[(1, 20914320), (2, 10457160), (3, 6971440), (4, 5228580), (5, 4182864), (6, 3485720), (7, 2987760), (8, 2614290), (10, 2091432), (12, 1742860), (14, 1493880), (15, 1394288), (16, 1307145), (20, 1045716), (21, 995920), (24, 871430), (28, 746940), (30, 697144), (35, 597552), (40, 522858), (42, 497960), (48, 435715), (56, 373470), (59, 354480), (60, 348572), (70, 298776), (80, 261429), (84, 248980), (105, 199184), (112, 186735), (118, 177240), (120, 174286), (140, 149388), (168, 124490), (177, 118160), (210, 99592), (211, 99120), (236, 88620), (240, 87143), (280, 74694), (295, 70896), (336, 62245), (354, 59080), (413, 50640), (420, 49796), (422, 49560), (472, 44310), (560, 37347), (590, 35448), (633, 33040), (708, 29540), (826, 25320), (840, 24898), (844, 24780), (885, 23632), (944, 22155), (1055, 19824), (1180, 17724), (1239, 16880), (1266, 16520), (1416, 14770), (1477, 14160), (1652, 12660), (1680, 12449), (1688, 12390), (1770, 11816), (2065, 10128), (2110, 9912), (2360, 8862), (2478, 8440), (2532, 8260), (2832, 7385), (2954, 7080), (3165, 6608), (3304, 6330), (3376, 6195), (3540, 5908), (4130, 5064), (4220, 4956), (4431, 4720)]