205969280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1768

約数の個数: 128

約数和(自身を含む): 569086560

約数和(自身を除く): 363117280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 187, 220, 272, 320, 340, 352, 374, 440, 544, 640, 680, 704, 748, 880, 935, 1088, 1360, 1408, 1496, 1721, 1760, 1870, 2176, 2720, 2992, 3442, 3520, 3740, 5440, 5984, 6884, 7040, 7480, 8605, 10880, 11968, 13768, 14960, 17210, 18931, 23936, 27536, 29257, 29920, 34420, 37862, 55072, 58514, 59840, 68840, 75724, 94655, 110144, 117028, 119680, 137680, 146285, 151448, 189310, 220288, 234056, 275360, 292570, 302896, 321827, 378620, 468112, 550720, 585140, 605792, 643654, 757240, 936224, 1101440, 1170280, 1211584, 1287308, 1514480, 1609135, 1872448, 2340560, 2423168, 2574616, 3028960, 3218270, 3744896, 4681120, 5149232, 6057920, 6436540, 9362240, 10298464, 12115840, 12873080, 18724480, 20596928, 25746160, 41193856, 51492320, 102984640, 205969280]

約数ペア:

[(1, 205969280), (2, 102984640), (4, 51492320), (5, 41193856), (8, 25746160), (10, 20596928), (11, 18724480), (16, 12873080), (17, 12115840), (20, 10298464), (22, 9362240), (32, 6436540), (34, 6057920), (40, 5149232), (44, 4681120), (55, 3744896), (64, 3218270), (68, 3028960), (80, 2574616), (85, 2423168), (88, 2340560), (110, 1872448), (128, 1609135), (136, 1514480), (160, 1287308), (170, 1211584), (176, 1170280), (187, 1101440), (220, 936224), (272, 757240), (320, 643654), (340, 605792), (352, 585140), (374, 550720), (440, 468112), (544, 378620), (640, 321827), (680, 302896), (704, 292570), (748, 275360), (880, 234056), (935, 220288), (1088, 189310), (1360, 151448), (1408, 146285), (1496, 137680), (1721, 119680), (1760, 117028), (1870, 110144), (2176, 94655), (2720, 75724), (2992, 68840), (3442, 59840), (3520, 58514), (3740, 55072), (5440, 37862), (5984, 34420), (6884, 29920), (7040, 29257), (7480, 27536), (8605, 23936), (10880, 18931), (11968, 17210), (13768, 14960)]