19906100

素因数分解:

$2^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1453}}^1$

素因数の和:1604

約数の個数: 36

約数和(自身を含む): 43541484

約数和(自身を除く): 23635384

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 137, 274, 548, 685, 1370, 1453, 2740, 2906, 3425, 5812, 6850, 7265, 13700, 14530, 29060, 36325, 72650, 145300, 199061, 398122, 796244, 995305, 1990610, 3981220, 4976525, 9953050, 19906100]

約数ペア:

[(1, 19906100), (2, 9953050), (4, 4976525), (5, 3981220), (10, 1990610), (20, 995305), (25, 796244), (50, 398122), (100, 199061), (137, 145300), (274, 72650), (548, 36325), (685, 29060), (1370, 14530), (1453, 13700), (2740, 7265), (2906, 6850), (3425, 5812)]