20420060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 49896000

約数和(自身を除く): 29475940

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 29, 34, 38, 58, 68, 76, 85, 95, 109, 116, 145, 170, 190, 218, 290, 323, 340, 380, 436, 493, 545, 551, 580, 646, 986, 1090, 1102, 1292, 1615, 1853, 1972, 2071, 2180, 2204, 2465, 2755, 3161, 3230, 3706, 4142, 4930, 5510, 6322, 6460, 7412, 8284, 9265, 9367, 9860, 10355, 11020, 12644, 15805, 18530, 18734, 20710, 31610, 35207, 37060, 37468, 41420, 46835, 53737, 60059, 63220, 70414, 93670, 107474, 120118, 140828, 176035, 187340, 214948, 240236, 268685, 300295, 352070, 537370, 600590, 704140, 1021003, 1074740, 1201180, 2042006, 4084012, 5105015, 10210030, 20420060]

約数ペア:

[(1, 20420060), (2, 10210030), (4, 5105015), (5, 4084012), (10, 2042006), (17, 1201180), (19, 1074740), (20, 1021003), (29, 704140), (34, 600590), (38, 537370), (58, 352070), (68, 300295), (76, 268685), (85, 240236), (95, 214948), (109, 187340), (116, 176035), (145, 140828), (170, 120118), (190, 107474), (218, 93670), (290, 70414), (323, 63220), (340, 60059), (380, 53737), (436, 46835), (493, 41420), (545, 37468), (551, 37060), (580, 35207), (646, 31610), (986, 20710), (1090, 18734), (1102, 18530), (1292, 15805), (1615, 12644), (1853, 11020), (1972, 10355), (2071, 9860), (2180, 9367), (2204, 9265), (2465, 8284), (2755, 7412), (3161, 6460), (3230, 6322), (3706, 5510), (4142, 4930)]