20416000

素因数分解:

$2^9\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 160

約数和(自身を含む): 57451680

約数和(自身を除く): 37035680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 29, 32, 40, 44, 50, 55, 58, 64, 80, 88, 100, 110, 116, 125, 128, 145, 160, 176, 200, 220, 232, 250, 256, 275, 290, 319, 320, 352, 400, 440, 464, 500, 512, 550, 580, 638, 640, 704, 725, 800, 880, 928, 1000, 1100, 1160, 1276, 1280, 1375, 1408, 1450, 1595, 1600, 1760, 1856, 2000, 2200, 2320, 2552, 2560, 2750, 2816, 2900, 3190, 3200, 3520, 3625, 3712, 4000, 4400, 4640, 5104, 5500, 5632, 5800, 6380, 6400, 7040, 7250, 7424, 7975, 8000, 8800, 9280, 10208, 11000, 11600, 12760, 12800, 14080, 14500, 14848, 15950, 16000, 17600, 18560, 20416, 22000, 23200, 25520, 28160, 29000, 31900, 32000, 35200, 37120, 39875, 40832, 44000, 46400, 51040, 58000, 63800, 64000, 70400, 74240, 79750, 81664, 88000, 92800, 102080, 116000, 127600, 140800, 159500, 163328, 176000, 185600, 204160, 232000, 255200, 319000, 352000, 371200, 408320, 464000, 510400, 638000, 704000, 816640, 928000, 1020800, 1276000, 1856000, 2041600, 2552000, 4083200, 5104000, 10208000, 20416000]

約数ペア:

[(1, 20416000), (2, 10208000), (4, 5104000), (5, 4083200), (8, 2552000), (10, 2041600), (11, 1856000), (16, 1276000), (20, 1020800), (22, 928000), (25, 816640), (29, 704000), (32, 638000), (40, 510400), (44, 464000), (50, 408320), (55, 371200), (58, 352000), (64, 319000), (80, 255200), (88, 232000), (100, 204160), (110, 185600), (116, 176000), (125, 163328), (128, 159500), (145, 140800), (160, 127600), (176, 116000), (200, 102080), (220, 92800), (232, 88000), (250, 81664), (256, 79750), (275, 74240), (290, 70400), (319, 64000), (320, 63800), (352, 58000), (400, 51040), (440, 46400), (464, 44000), (500, 40832), (512, 39875), (550, 37120), (580, 35200), (638, 32000), (640, 31900), (704, 29000), (725, 28160), (800, 25520), (880, 23200), (928, 22000), (1000, 20416), (1100, 18560), (1160, 17600), (1276, 16000), (1280, 15950), (1375, 14848), (1408, 14500), (1450, 14080), (1595, 12800), (1600, 12760), (1760, 11600), (1856, 11000), (2000, 10208), (2200, 9280), (2320, 8800), (2552, 8000), (2560, 7975), (2750, 7424), (2816, 7250), (2900, 7040), (3190, 6400), (3200, 6380), (3520, 5800), (3625, 5632), (3712, 5500), (4000, 5104), (4400, 4640)]