90120880

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10937}}^1$

素因数の和:11053

約数の個数: 40

約数和(自身を含む): 211584672

約数和(自身を除く): 121463792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10937, 21874, 43748, 54685, 87496, 109370, 174992, 218740, 437480, 874960, 1126511, 2253022, 4506044, 5632555, 9012088, 11265110, 18024176, 22530220, 45060440, 90120880]

約数ペア:

[(1, 90120880), (2, 45060440), (4, 22530220), (5, 18024176), (8, 11265110), (10, 9012088), (16, 5632555), (20, 4506044), (40, 2253022), (80, 1126511), (103, 874960), (206, 437480), (412, 218740), (515, 174992), (824, 109370), (1030, 87496), (1648, 54685), (2060, 43748), (4120, 21874), (8240, 10937)]