20205765

素因数分解:

$3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1621}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 35171448

約数和(自身を除く): 14965683

約数列:

[1, 3, 5, 9, 15, 45, 277, 831, 1385, 1621, 2493, 4155, 4863, 8105, 12465, 14589, 24315, 72945, 449017, 1347051, 2245085, 4041153, 6735255, 20205765]

約数ペア:

[(1, 20205765), (3, 6735255), (5, 4041153), (9, 2245085), (15, 1347051), (45, 449017), (277, 72945), (831, 24315), (1385, 14589), (1621, 12465), (2493, 8105), (4155, 4863)]