28000205

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{821}}^1$

素因数の和:1204

約数の個数: 16

約数和(自身を含む): 35510400

約数和(自身を除く): 7510195

約数列:

[1, 5, 19, 95, 359, 821, 1795, 4105, 6821, 15599, 34105, 77995, 294739, 1473695, 5600041, 28000205]

約数ペア:

[(1, 28000205), (5, 5600041), (19, 1473695), (95, 294739), (359, 77995), (821, 34105), (1795, 15599), (4105, 6821)]