19641580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140297}}^1$

素因数の和:140313

約数の個数: 24

約数和(自身を含む): 47140128

約数和(自身を除く): 27498548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140297, 280594, 561188, 701485, 982079, 1402970, 1964158, 2805940, 3928316, 4910395, 9820790, 19641580]

約数ペア:

[(1, 19641580), (2, 9820790), (4, 4910395), (5, 3928316), (7, 2805940), (10, 1964158), (14, 1402970), (20, 982079), (28, 701485), (35, 561188), (70, 280594), (140, 140297)]