18935740

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4957}}^1$

素因数の和:5157

約数の個数: 24

約数和(自身を含む): 39981312

約数和(自身を除く): 21045572

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 4957, 9914, 19828, 24785, 49570, 99140, 946787, 1893574, 3787148, 4733935, 9467870, 18935740]

約数ペア:

[(1, 18935740), (2, 9467870), (4, 4733935), (5, 3787148), (10, 1893574), (20, 946787), (191, 99140), (382, 49570), (764, 24785), (955, 19828), (1910, 9914), (3820, 4957)]