21079520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 65318400

約数和(自身を除く): 44238880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 29, 32, 35, 40, 44, 55, 56, 58, 59, 70, 77, 80, 88, 110, 112, 116, 118, 140, 145, 154, 160, 176, 203, 220, 224, 232, 236, 280, 290, 295, 308, 319, 352, 385, 406, 413, 440, 464, 472, 560, 580, 590, 616, 638, 649, 770, 812, 826, 880, 928, 944, 1015, 1120, 1160, 1180, 1232, 1276, 1298, 1540, 1595, 1624, 1652, 1711, 1760, 1888, 2030, 2065, 2233, 2320, 2360, 2464, 2552, 2596, 3080, 3190, 3245, 3248, 3304, 3422, 4060, 4130, 4466, 4543, 4640, 4720, 5104, 5192, 6160, 6380, 6490, 6496, 6608, 6844, 8120, 8260, 8555, 8932, 9086, 9440, 10208, 10384, 11165, 11977, 12320, 12760, 12980, 13216, 13688, 16240, 16520, 17110, 17864, 18172, 18821, 20768, 22330, 22715, 23954, 25520, 25960, 27376, 32480, 33040, 34220, 35728, 36344, 37642, 44660, 45430, 47908, 51040, 51920, 54752, 59885, 66080, 68440, 71456, 72688, 75284, 89320, 90860, 94105, 95816, 103840, 119770, 131747, 136880, 145376, 150568, 178640, 181720, 188210, 191632, 239540, 263494, 273760, 301136, 357280, 363440, 376420, 383264, 479080, 526988, 602272, 658735, 726880, 752840, 958160, 1053976, 1317470, 1505680, 1916320, 2107952, 2634940, 3011360, 4215904, 5269880, 10539760, 21079520]

約数ペア:

[(1, 21079520), (2, 10539760), (4, 5269880), (5, 4215904), (7, 3011360), (8, 2634940), (10, 2107952), (11, 1916320), (14, 1505680), (16, 1317470), (20, 1053976), (22, 958160), (28, 752840), (29, 726880), (32, 658735), (35, 602272), (40, 526988), (44, 479080), (55, 383264), (56, 376420), (58, 363440), (59, 357280), (70, 301136), (77, 273760), (80, 263494), (88, 239540), (110, 191632), (112, 188210), (116, 181720), (118, 178640), (140, 150568), (145, 145376), (154, 136880), (160, 131747), (176, 119770), (203, 103840), (220, 95816), (224, 94105), (232, 90860), (236, 89320), (280, 75284), (290, 72688), (295, 71456), (308, 68440), (319, 66080), (352, 59885), (385, 54752), (406, 51920), (413, 51040), (440, 47908), (464, 45430), (472, 44660), (560, 37642), (580, 36344), (590, 35728), (616, 34220), (638, 33040), (649, 32480), (770, 27376), (812, 25960), (826, 25520), (880, 23954), (928, 22715), (944, 22330), (1015, 20768), (1120, 18821), (1160, 18172), (1180, 17864), (1232, 17110), (1276, 16520), (1298, 16240), (1540, 13688), (1595, 13216), (1624, 12980), (1652, 12760), (1711, 12320), (1760, 11977), (1888, 11165), (2030, 10384), (2065, 10208), (2233, 9440), (2320, 9086), (2360, 8932), (2464, 8555), (2552, 8260), (2596, 8120), (3080, 6844), (3190, 6608), (3245, 6496), (3248, 6490), (3304, 6380), (3422, 6160), (4060, 5192), (4130, 5104), (4466, 4720), (4543, 4640)]