1285504580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{589681}}^1$

素因数の和:589799

約数の個数: 24

約数和(自身を含む): 2724330840

約数和(自身を除く): 1438826260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 589681, 1179362, 2358724, 2948405, 5896810, 11793620, 64275229, 128550458, 257100916, 321376145, 642752290, 1285504580]

約数ペア:

[(1, 1285504580), (2, 642752290), (4, 321376145), (5, 257100916), (10, 128550458), (20, 64275229), (109, 11793620), (218, 5896810), (436, 2948405), (545, 2358724), (1090, 1179362), (2180, 589681)]