209984255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{190031}}^1$

素因数の和:190066

約数の個数: 16

約数和(自身を含む): 287328384

約数和(自身を除く): 77344129

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 190031, 950155, 2470403, 3230527, 12352015, 16152635, 41996851, 209984255]

約数ペア:

[(1, 209984255), (5, 41996851), (13, 16152635), (17, 12352015), (65, 3230527), (85, 2470403), (221, 950155), (1105, 190031)]