19385500

素因数分解:

$2^2\times 5^3\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 42797664

約数和(自身を除く): 23412164

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 137, 250, 274, 283, 500, 548, 566, 685, 1132, 1370, 1415, 2740, 2830, 3425, 5660, 6850, 7075, 13700, 14150, 17125, 28300, 34250, 35375, 38771, 68500, 70750, 77542, 141500, 155084, 193855, 387710, 775420, 969275, 1938550, 3877100, 4846375, 9692750, 19385500]

約数ペア:

[(1, 19385500), (2, 9692750), (4, 4846375), (5, 3877100), (10, 1938550), (20, 969275), (25, 775420), (50, 387710), (100, 193855), (125, 155084), (137, 141500), (250, 77542), (274, 70750), (283, 68500), (500, 38771), (548, 35375), (566, 34250), (685, 28300), (1132, 17125), (1370, 14150), (1415, 13700), (2740, 7075), (2830, 6850), (3425, 5660)]