257560000

素因数分解:

$2^6\times 5^4\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 140

約数和(自身を含む): 657014688

約数和(自身を除く): 399454688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 125, 137, 160, 188, 200, 235, 250, 274, 320, 376, 400, 470, 500, 548, 625, 685, 752, 800, 940, 1000, 1096, 1175, 1250, 1370, 1504, 1600, 1880, 2000, 2192, 2350, 2500, 2740, 3008, 3425, 3760, 4000, 4384, 4700, 5000, 5480, 5875, 6439, 6850, 7520, 8000, 8768, 9400, 10000, 10960, 11750, 12878, 13700, 15040, 17125, 18800, 20000, 21920, 23500, 25756, 27400, 29375, 32195, 34250, 37600, 40000, 43840, 47000, 51512, 54800, 58750, 64390, 68500, 75200, 85625, 94000, 103024, 109600, 117500, 128780, 137000, 160975, 171250, 188000, 206048, 219200, 235000, 257560, 274000, 321950, 342500, 376000, 412096, 470000, 515120, 548000, 643900, 685000, 804875, 940000, 1030240, 1096000, 1287800, 1370000, 1609750, 1880000, 2060480, 2575600, 2740000, 3219500, 4024375, 5151200, 5480000, 6439000, 8048750, 10302400, 12878000, 16097500, 25756000, 32195000, 51512000, 64390000, 128780000, 257560000]

約数ペア:

[(1, 257560000), (2, 128780000), (4, 64390000), (5, 51512000), (8, 32195000), (10, 25756000), (16, 16097500), (20, 12878000), (25, 10302400), (32, 8048750), (40, 6439000), (47, 5480000), (50, 5151200), (64, 4024375), (80, 3219500), (94, 2740000), (100, 2575600), (125, 2060480), (137, 1880000), (160, 1609750), (188, 1370000), (200, 1287800), (235, 1096000), (250, 1030240), (274, 940000), (320, 804875), (376, 685000), (400, 643900), (470, 548000), (500, 515120), (548, 470000), (625, 412096), (685, 376000), (752, 342500), (800, 321950), (940, 274000), (1000, 257560), (1096, 235000), (1175, 219200), (1250, 206048), (1370, 188000), (1504, 171250), (1600, 160975), (1880, 137000), (2000, 128780), (2192, 117500), (2350, 109600), (2500, 103024), (2740, 94000), (3008, 85625), (3425, 75200), (3760, 68500), (4000, 64390), (4384, 58750), (4700, 54800), (5000, 51512), (5480, 47000), (5875, 43840), (6439, 40000), (6850, 37600), (7520, 34250), (8000, 32195), (8768, 29375), (9400, 27400), (10000, 25756), (10960, 23500), (11750, 21920), (12878, 20000), (13700, 18800), (15040, 17125)]