1008640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{197}}^1$

素因数の和:222

約数の個数: 44

約数和(自身を含む): 2431836

約数和(自身を除く): 1423196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 512, 640, 788, 985, 1024, 1280, 1576, 1970, 2560, 3152, 3940, 5120, 6304, 7880, 12608, 15760, 25216, 31520, 50432, 63040, 100864, 126080, 201728, 252160, 504320, 1008640]

約数ペア:

[(1, 1008640), (2, 504320), (4, 252160), (5, 201728), (8, 126080), (10, 100864), (16, 63040), (20, 50432), (32, 31520), (40, 25216), (64, 15760), (80, 12608), (128, 7880), (160, 6304), (197, 5120), (256, 3940), (320, 3152), (394, 2560), (512, 1970), (640, 1576), (788, 1280), (985, 1024)]