289761280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{28297}}^1$

素因数の和:28324

約数の個数: 48

約数和(自身を含む): 695281860

約数和(自身を除く): 405520580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 28297, 56594, 113188, 141485, 226376, 282970, 452752, 565940, 905504, 1131880, 1811008, 2263760, 3622016, 4527520, 7244032, 9055040, 14488064, 18110080, 28976128, 36220160, 57952256, 72440320, 144880640, 289761280]

約数ペア:

[(1, 289761280), (2, 144880640), (4, 72440320), (5, 57952256), (8, 36220160), (10, 28976128), (16, 18110080), (20, 14488064), (32, 9055040), (40, 7244032), (64, 4527520), (80, 3622016), (128, 2263760), (160, 1811008), (256, 1131880), (320, 905504), (512, 565940), (640, 452752), (1024, 282970), (1280, 226376), (2048, 141485), (2560, 113188), (5120, 56594), (10240, 28297)]