18549800

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 43507260

約数和(自身を除く): 24957460

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 548, 677, 685, 1096, 1354, 1370, 2708, 2740, 3385, 3425, 5416, 5480, 6770, 6850, 13540, 13700, 16925, 27080, 27400, 33850, 67700, 92749, 135400, 185498, 370996, 463745, 741992, 927490, 1854980, 2318725, 3709960, 4637450, 9274900, 18549800]

約数ペア:

[(1, 18549800), (2, 9274900), (4, 4637450), (5, 3709960), (8, 2318725), (10, 1854980), (20, 927490), (25, 741992), (40, 463745), (50, 370996), (100, 185498), (137, 135400), (200, 92749), (274, 67700), (548, 33850), (677, 27400), (685, 27080), (1096, 16925), (1354, 13700), (1370, 13540), (2708, 6850), (2740, 6770), (3385, 5480), (3425, 5416)]