19389580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138497}}^1$

素因数の和:138513

約数の個数: 24

約数和(自身を含む): 46535328

約数和(自身を除く): 27145748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138497, 276994, 553988, 692485, 969479, 1384970, 1938958, 2769940, 3877916, 4847395, 9694790, 19389580]

約数ペア:

[(1, 19389580), (2, 9694790), (4, 4847395), (5, 3877916), (7, 2769940), (10, 1938958), (14, 1384970), (20, 969479), (28, 692485), (35, 553988), (70, 276994), (140, 138497)]