7040222780

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{428759}}^1$

素因数の和:429589

約数の個数: 24

約数和(自身を含む): 14802510240

約数和(自身を除く): 7762287460

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 428759, 857518, 1715036, 2143795, 4287590, 8575180, 352011139, 704022278, 1408044556, 1760055695, 3520111390, 7040222780]

約数ペア:

[(1, 7040222780), (2, 3520111390), (4, 1760055695), (5, 1408044556), (10, 704022278), (20, 352011139), (821, 8575180), (1642, 4287590), (3284, 2143795), (4105, 1715036), (8210, 857518), (16420, 428759)]