64048640

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:347

約数の個数: 80

約数和(自身を含む): 155561472

約数和(自身を除く): 91512832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 197, 254, 256, 320, 394, 508, 512, 635, 640, 788, 985, 1016, 1270, 1280, 1576, 1970, 2032, 2540, 2560, 3152, 3940, 4064, 5080, 6304, 7880, 8128, 10160, 12608, 15760, 16256, 20320, 25019, 25216, 31520, 32512, 40640, 50038, 50432, 63040, 65024, 81280, 100076, 100864, 125095, 126080, 162560, 200152, 250190, 252160, 325120, 400304, 500380, 504320, 800608, 1000760, 1601216, 2001520, 3202432, 4003040, 6404864, 8006080, 12809728, 16012160, 32024320, 64048640]

約数ペア:

[(1, 64048640), (2, 32024320), (4, 16012160), (5, 12809728), (8, 8006080), (10, 6404864), (16, 4003040), (20, 3202432), (32, 2001520), (40, 1601216), (64, 1000760), (80, 800608), (127, 504320), (128, 500380), (160, 400304), (197, 325120), (254, 252160), (256, 250190), (320, 200152), (394, 162560), (508, 126080), (512, 125095), (635, 100864), (640, 100076), (788, 81280), (985, 65024), (1016, 63040), (1270, 50432), (1280, 50038), (1576, 40640), (1970, 32512), (2032, 31520), (2540, 25216), (2560, 25019), (3152, 20320), (3940, 16256), (4064, 15760), (5080, 12608), (6304, 10160), (7880, 8128)]