171731680

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 420789600

約数和(自身を除く): 249057920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 109, 160, 172, 215, 218, 229, 344, 430, 436, 458, 545, 688, 860, 872, 916, 1090, 1145, 1376, 1720, 1744, 1832, 2180, 2290, 3440, 3488, 3664, 4360, 4580, 4687, 6880, 7328, 8720, 9160, 9374, 9847, 17440, 18320, 18748, 19694, 23435, 24961, 36640, 37496, 39388, 46870, 49235, 49922, 74992, 78776, 93740, 98470, 99844, 124805, 149984, 157552, 187480, 196940, 199688, 249610, 315104, 374960, 393880, 399376, 499220, 749920, 787760, 798752, 998440, 1073323, 1575520, 1996880, 2146646, 3993760, 4293292, 5366615, 8586584, 10733230, 17173168, 21466460, 34346336, 42932920, 85865840, 171731680]

約数ペア:

[(1, 171731680), (2, 85865840), (4, 42932920), (5, 34346336), (8, 21466460), (10, 17173168), (16, 10733230), (20, 8586584), (32, 5366615), (40, 4293292), (43, 3993760), (80, 2146646), (86, 1996880), (109, 1575520), (160, 1073323), (172, 998440), (215, 798752), (218, 787760), (229, 749920), (344, 499220), (430, 399376), (436, 393880), (458, 374960), (545, 315104), (688, 249610), (860, 199688), (872, 196940), (916, 187480), (1090, 157552), (1145, 149984), (1376, 124805), (1720, 99844), (1744, 98470), (1832, 93740), (2180, 78776), (2290, 74992), (3440, 49922), (3488, 49235), (3664, 46870), (4360, 39388), (4580, 37496), (4687, 36640), (6880, 24961), (7328, 23435), (8720, 19694), (9160, 18748), (9374, 18320), (9847, 17440)]