208810475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{439601}}^1$

素因数の和:439630

約数の個数: 12

約数和(自身を含む): 272553240

約数和(自身を除く): 63742765

約数列:

[1, 5, 19, 25, 95, 475, 439601, 2198005, 8352419, 10990025, 41762095, 208810475]

約数ペア:

[(1, 208810475), (5, 41762095), (19, 10990025), (25, 8352419), (95, 2198005), (475, 439601)]