210323780

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{12809}}^1$

素因数の和:13639

約数の個数: 24

約数和(自身を含む): 442252440

約数和(自身を除く): 231928660

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 12809, 16420, 25618, 51236, 64045, 128090, 256180, 10516189, 21032378, 42064756, 52580945, 105161890, 210323780]

約数ペア:

[(1, 210323780), (2, 105161890), (4, 52580945), (5, 42064756), (10, 21032378), (20, 10516189), (821, 256180), (1642, 128090), (3284, 64045), (4105, 51236), (8210, 25618), (12809, 16420)]