16561580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{118297}}^1$

素因数の和:118313

約数の個数: 24

約数和(自身を含む): 39748128

約数和(自身を除く): 23186548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 118297, 236594, 473188, 591485, 828079, 1182970, 1656158, 2365940, 3312316, 4140395, 8280790, 16561580]

約数ペア:

[(1, 16561580), (2, 8280790), (4, 4140395), (5, 3312316), (7, 2365940), (10, 1656158), (14, 1182970), (20, 828079), (28, 591485), (35, 473188), (70, 236594), (140, 118297)]