210209920

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 539784000

約数和(自身を除く): 329574080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 64, 76, 80, 95, 118, 128, 152, 160, 190, 236, 293, 295, 304, 320, 380, 472, 586, 590, 608, 640, 760, 944, 1121, 1172, 1180, 1216, 1465, 1520, 1888, 2242, 2344, 2360, 2432, 2930, 3040, 3776, 4484, 4688, 4720, 5567, 5605, 5860, 6080, 7552, 8968, 9376, 9440, 11134, 11210, 11720, 12160, 17287, 17936, 18752, 18880, 22268, 22420, 23440, 27835, 34574, 35872, 37504, 37760, 44536, 44840, 46880, 55670, 69148, 71744, 86435, 89072, 89680, 93760, 111340, 138296, 143488, 172870, 178144, 179360, 187520, 222680, 276592, 328453, 345740, 356288, 358720, 445360, 553184, 656906, 691480, 712576, 717440, 890720, 1106368, 1313812, 1382960, 1642265, 1781440, 2212736, 2627624, 2765920, 3284530, 3562880, 5255248, 5531840, 6569060, 10510496, 11063680, 13138120, 21020992, 26276240, 42041984, 52552480, 105104960, 210209920]

約数ペア:

[(1, 210209920), (2, 105104960), (4, 52552480), (5, 42041984), (8, 26276240), (10, 21020992), (16, 13138120), (19, 11063680), (20, 10510496), (32, 6569060), (38, 5531840), (40, 5255248), (59, 3562880), (64, 3284530), (76, 2765920), (80, 2627624), (95, 2212736), (118, 1781440), (128, 1642265), (152, 1382960), (160, 1313812), (190, 1106368), (236, 890720), (293, 717440), (295, 712576), (304, 691480), (320, 656906), (380, 553184), (472, 445360), (586, 358720), (590, 356288), (608, 345740), (640, 328453), (760, 276592), (944, 222680), (1121, 187520), (1172, 179360), (1180, 178144), (1216, 172870), (1465, 143488), (1520, 138296), (1888, 111340), (2242, 93760), (2344, 89680), (2360, 89072), (2432, 86435), (2930, 71744), (3040, 69148), (3776, 55670), (4484, 46880), (4688, 44840), (4720, 44536), (5567, 37760), (5605, 37504), (5860, 35872), (6080, 34574), (7552, 27835), (8968, 23440), (9376, 22420), (9440, 22268), (11134, 18880), (11210, 18752), (11720, 17936), (12160, 17287)]