18381580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131297}}^1$

素因数の和:131313

約数の個数: 24

約数和(自身を含む): 44116128

約数和(自身を除く): 25734548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131297, 262594, 525188, 656485, 919079, 1312970, 1838158, 2625940, 3676316, 4595395, 9190790, 18381580]

約数ペア:

[(1, 18381580), (2, 9190790), (4, 4595395), (5, 3676316), (7, 2625940), (10, 1838158), (14, 1312970), (20, 919079), (28, 656485), (35, 525188), (70, 262594), (140, 131297)]