18785710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81677}}^1$

素因数の和:81707

約数の個数: 16

約数和(自身を含む): 35284896

約数和(自身を除く): 16499186

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 81677, 163354, 408385, 816770, 1878571, 3757142, 9392855, 18785710]

約数ペア:

[(1, 18785710), (2, 9392855), (5, 3757142), (10, 1878571), (23, 816770), (46, 408385), (115, 163354), (230, 81677)]