20115205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19249}}^1$

素因数の和:19284

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 7604795

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19249, 96245, 211739, 365731, 1058695, 1828655, 4023041, 20115205]

約数ペア:

[(1, 20115205), (5, 4023041), (11, 1828655), (19, 1058695), (55, 365731), (95, 211739), (209, 96245), (1045, 19249)]