18969580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135497}}^1$

素因数の和:135513

約数の個数: 24

約数和(自身を含む): 45527328

約数和(自身を除く): 26557748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135497, 270994, 541988, 677485, 948479, 1354970, 1896958, 2709940, 3793916, 4742395, 9484790, 18969580]

約数ペア:

[(1, 18969580), (2, 9484790), (4, 4742395), (5, 3793916), (7, 2709940), (10, 1896958), (14, 1354970), (20, 948479), (28, 677485), (35, 541988), (70, 270994), (140, 135497)]