8731040

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 20806632

約数和(自身を除く): 12075592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 277, 394, 554, 788, 985, 1108, 1385, 1576, 1970, 2216, 2770, 3152, 3940, 4432, 5540, 6304, 7880, 8864, 11080, 15760, 22160, 31520, 44320, 54569, 109138, 218276, 272845, 436552, 545690, 873104, 1091380, 1746208, 2182760, 4365520, 8731040]

約数ペア:

[(1, 8731040), (2, 4365520), (4, 2182760), (5, 1746208), (8, 1091380), (10, 873104), (16, 545690), (20, 436552), (32, 272845), (40, 218276), (80, 109138), (160, 54569), (197, 44320), (277, 31520), (394, 22160), (554, 15760), (788, 11080), (985, 8864), (1108, 7880), (1385, 6304), (1576, 5540), (1970, 4432), (2216, 3940), (2770, 3152)]