20552015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 28823040

約数和(自身を除く): 8271025

約数列:

[1, 5, 11, 19, 55, 71, 95, 209, 277, 355, 781, 1045, 1349, 1385, 3047, 3905, 5263, 6745, 14839, 15235, 19667, 26315, 57893, 74195, 98335, 216337, 289465, 373673, 1081685, 1868365, 4110403, 20552015]

約数ペア:

[(1, 20552015), (5, 4110403), (11, 1868365), (19, 1081685), (55, 373673), (71, 289465), (95, 216337), (209, 98335), (277, 74195), (355, 57893), (781, 26315), (1045, 19667), (1349, 15235), (1385, 14839), (3047, 6745), (3905, 5263)]