20325700

素因数分解:

$2^2\times 5^2\times {\mathrm{439}}^1\times {\mathrm{463}}^1$

素因数の和:916

約数の個数: 36

約数和(自身を含む): 44302720

約数和(自身を除く): 23977020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 439, 463, 878, 926, 1756, 1852, 2195, 2315, 4390, 4630, 8780, 9260, 10975, 11575, 21950, 23150, 43900, 46300, 203257, 406514, 813028, 1016285, 2032570, 4065140, 5081425, 10162850, 20325700]

約数ペア:

[(1, 20325700), (2, 10162850), (4, 5081425), (5, 4065140), (10, 2032570), (20, 1016285), (25, 813028), (50, 406514), (100, 203257), (439, 46300), (463, 43900), (878, 23150), (926, 21950), (1756, 11575), (1852, 10975), (2195, 9260), (2315, 8780), (4390, 4630)]