19501580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139297}}^1$

素因数の和:139313

約数の個数: 24

約数和(自身を含む): 46804128

約数和(自身を除く): 27302548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139297, 278594, 557188, 696485, 975079, 1392970, 1950158, 2785940, 3900316, 4875395, 9750790, 19501580]

約数ペア:

[(1, 19501580), (2, 9750790), (4, 4875395), (5, 3900316), (7, 2785940), (10, 1950158), (14, 1392970), (20, 975079), (28, 696485), (35, 557188), (70, 278594), (140, 139297)]