210905225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23369}}^1$

素因数の和:23417

約数の個数: 18

約数和(自身を含む): 276023070

約数和(自身を除く): 65117845

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 23369, 116845, 444011, 584225, 2220055, 8436209, 11100275, 42181045, 210905225]

約数ペア:

[(1, 210905225), (5, 42181045), (19, 11100275), (25, 8436209), (95, 2220055), (361, 584225), (475, 444011), (1805, 116845), (9025, 23369)]