19338920

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3529}}^1$

素因数の和:3677

約数の個数: 32

約数和(自身を含む): 43842600

約数和(自身を除く): 24503680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3529, 5480, 7058, 14116, 17645, 28232, 35290, 70580, 141160, 483473, 966946, 1933892, 2417365, 3867784, 4834730, 9669460, 19338920]

約数ペア:

[(1, 19338920), (2, 9669460), (4, 4834730), (5, 3867784), (8, 2417365), (10, 1933892), (20, 966946), (40, 483473), (137, 141160), (274, 70580), (548, 35290), (685, 28232), (1096, 17645), (1370, 14116), (2740, 7058), (3529, 5480)]