647707280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{17117}}^1$

素因数の和:17184

約数の個数: 80

約数和(自身を含む): 1681124544

約数和(自身を除く): 1033417264

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 3440, 3784, 4730, 7568, 9460, 17117, 18920, 34234, 37840, 68468, 85585, 136936, 171170, 188287, 273872, 342340, 376574, 684680, 736031, 753148, 941435, 1369360, 1472062, 1506296, 1882870, 2944124, 3012592, 3680155, 3765740, 5888248, 7360310, 7531480, 8096341, 11776496, 14720620, 15062960, 16192682, 29441240, 32385364, 40481705, 58882480, 64770728, 80963410, 129541456, 161926820, 323853640, 647707280]

約数ペア:

[(1, 647707280), (2, 323853640), (4, 161926820), (5, 129541456), (8, 80963410), (10, 64770728), (11, 58882480), (16, 40481705), (20, 32385364), (22, 29441240), (40, 16192682), (43, 15062960), (44, 14720620), (55, 11776496), (80, 8096341), (86, 7531480), (88, 7360310), (110, 5888248), (172, 3765740), (176, 3680155), (215, 3012592), (220, 2944124), (344, 1882870), (430, 1506296), (440, 1472062), (473, 1369360), (688, 941435), (860, 753148), (880, 736031), (946, 684680), (1720, 376574), (1892, 342340), (2365, 273872), (3440, 188287), (3784, 171170), (4730, 136936), (7568, 85585), (9460, 68468), (17117, 37840), (18920, 34234)]