8809990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 18284544

約数和(自身を除く): 9474554

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 991, 1270, 1778, 1982, 4445, 4955, 6937, 8890, 9910, 13874, 34685, 69370, 125857, 251714, 629285, 880999, 1258570, 1761998, 4404995, 8809990]

約数ペア:

[(1, 8809990), (2, 4404995), (5, 1761998), (7, 1258570), (10, 880999), (14, 629285), (35, 251714), (70, 125857), (127, 69370), (254, 34685), (635, 13874), (889, 9910), (991, 8890), (1270, 6937), (1778, 4955), (1982, 4445)]