20644045

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{821}}^1$

素因数の和:980

約数の個数: 16

約数和(自身を含む): 25567488

約数和(自身を除く): 4923443

約数列:

[1, 5, 47, 107, 235, 535, 821, 4105, 5029, 25145, 38587, 87847, 192935, 439235, 4128809, 20644045]

約数ペア:

[(1, 20644045), (5, 4128809), (47, 439235), (107, 192935), (235, 87847), (535, 38587), (821, 25145), (4105, 5029)]