208509370

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1\times {\mathrm{821}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 380849040

約数和(自身を除く): 172339670

約数列:

[1, 2, 5, 10, 109, 218, 233, 466, 545, 821, 1090, 1165, 1642, 2330, 4105, 8210, 25397, 50794, 89489, 126985, 178978, 191293, 253970, 382586, 447445, 894890, 956465, 1912930, 20850937, 41701874, 104254685, 208509370]

約数ペア:

[(1, 208509370), (2, 104254685), (5, 41701874), (10, 20850937), (109, 1912930), (218, 956465), (233, 894890), (466, 447445), (545, 382586), (821, 253970), (1090, 191293), (1165, 178978), (1642, 126985), (2330, 89489), (4105, 50794), (8210, 25397)]