18933400

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{691}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 44405640

約数和(自身を除く): 25472240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 548, 685, 691, 1096, 1370, 1382, 2740, 2764, 3425, 3455, 5480, 5528, 6850, 6910, 13700, 13820, 17275, 27400, 27640, 34550, 69100, 94667, 138200, 189334, 378668, 473335, 757336, 946670, 1893340, 2366675, 3786680, 4733350, 9466700, 18933400]

約数ペア:

[(1, 18933400), (2, 9466700), (4, 4733350), (5, 3786680), (8, 2366675), (10, 1893340), (20, 946670), (25, 757336), (40, 473335), (50, 378668), (100, 189334), (137, 138200), (200, 94667), (274, 69100), (548, 34550), (685, 27640), (691, 27400), (1096, 17275), (1370, 13820), (1382, 13700), (2740, 6910), (2764, 6850), (3425, 5528), (3455, 5480)]