81310360

素因数分解:

$2^3\times 5^1\times {\mathrm{2032759}}^1$

素因数の和:2032770

約数の個数: 16

約数和(自身を含む): 182948400

約数和(自身を除く): 101638040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2032759, 4065518, 8131036, 10163795, 16262072, 20327590, 40655180, 81310360]

約数ペア:

[(1, 81310360), (2, 40655180), (4, 20327590), (5, 16262072), (8, 10163795), (10, 8131036), (20, 4065518), (40, 2032759)]