20238155

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^2$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 28455072

約数和(自身を除く): 8216917

約数列:

[1, 5, 7, 35, 73, 89, 365, 445, 511, 623, 2555, 3115, 6497, 7921, 32485, 39605, 45479, 55447, 227395, 277235, 578233, 2891165, 4047631, 20238155]

約数ペア:

[(1, 20238155), (5, 4047631), (7, 2891165), (35, 578233), (73, 277235), (89, 227395), (365, 55447), (445, 45479), (511, 39605), (623, 32485), (2555, 7921), (3115, 6497)]