20794740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:114

約数の個数: 192

約数和(自身を含む): 68947200

約数和(自身を除く): 48152460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 29, 30, 34, 37, 38, 51, 57, 58, 60, 68, 74, 76, 85, 87, 95, 102, 111, 114, 116, 145, 148, 170, 174, 185, 190, 204, 222, 228, 255, 285, 290, 323, 340, 348, 370, 380, 435, 444, 493, 510, 551, 555, 570, 580, 629, 646, 703, 740, 870, 969, 986, 1020, 1073, 1102, 1110, 1140, 1258, 1292, 1406, 1479, 1615, 1653, 1740, 1887, 1938, 1972, 2109, 2146, 2204, 2220, 2465, 2516, 2755, 2812, 2958, 3145, 3219, 3230, 3306, 3515, 3774, 3876, 4218, 4292, 4845, 4930, 5365, 5510, 5916, 6290, 6438, 6460, 6612, 7030, 7395, 7548, 8265, 8436, 9367, 9435, 9690, 9860, 10545, 10730, 11020, 11951, 12580, 12876, 14060, 14790, 16095, 16530, 18241, 18734, 18870, 19380, 20387, 21090, 21460, 23902, 28101, 29580, 32190, 33060, 35853, 36482, 37468, 37740, 40774, 42180, 46835, 47804, 54723, 56202, 59755, 61161, 64380, 71706, 72964, 81548, 91205, 93670, 101935, 109446, 112404, 119510, 122322, 140505, 143412, 179265, 182410, 187340, 203870, 218892, 239020, 244644, 273615, 281010, 305805, 346579, 358530, 364820, 407740, 547230, 562020, 611610, 693158, 717060, 1039737, 1094460, 1223220, 1386316, 1732895, 2079474, 3465790, 4158948, 5198685, 6931580, 10397370, 20794740]

約数ペア:

[(1, 20794740), (2, 10397370), (3, 6931580), (4, 5198685), (5, 4158948), (6, 3465790), (10, 2079474), (12, 1732895), (15, 1386316), (17, 1223220), (19, 1094460), (20, 1039737), (29, 717060), (30, 693158), (34, 611610), (37, 562020), (38, 547230), (51, 407740), (57, 364820), (58, 358530), (60, 346579), (68, 305805), (74, 281010), (76, 273615), (85, 244644), (87, 239020), (95, 218892), (102, 203870), (111, 187340), (114, 182410), (116, 179265), (145, 143412), (148, 140505), (170, 122322), (174, 119510), (185, 112404), (190, 109446), (204, 101935), (222, 93670), (228, 91205), (255, 81548), (285, 72964), (290, 71706), (323, 64380), (340, 61161), (348, 59755), (370, 56202), (380, 54723), (435, 47804), (444, 46835), (493, 42180), (510, 40774), (551, 37740), (555, 37468), (570, 36482), (580, 35853), (629, 33060), (646, 32190), (703, 29580), (740, 28101), (870, 23902), (969, 21460), (986, 21090), (1020, 20387), (1073, 19380), (1102, 18870), (1110, 18734), (1140, 18241), (1258, 16530), (1292, 16095), (1406, 14790), (1479, 14060), (1615, 12876), (1653, 12580), (1740, 11951), (1887, 11020), (1938, 10730), (1972, 10545), (2109, 9860), (2146, 9690), (2204, 9435), (2220, 9367), (2465, 8436), (2516, 8265), (2755, 7548), (2812, 7395), (2958, 7030), (3145, 6612), (3219, 6460), (3230, 6438), (3306, 6290), (3515, 5916), (3774, 5510), (3876, 5365), (4218, 4930), (4292, 4845)]