218640025

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{68863}}^1$

素因数の和:69000

約数の個数: 12

約数和(自身を含む): 273252352

約数和(自身を除く): 54612327

約数列:

[1, 5, 25, 127, 635, 3175, 68863, 344315, 1721575, 8745601, 43728005, 218640025]

約数ペア:

[(1, 218640025), (5, 43728005), (25, 8745601), (127, 1721575), (635, 344315), (3175, 68863)]