28284945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1987}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 49429632

約数和(自身を除く): 21144687

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1987, 2847, 4745, 5961, 9935, 14235, 25831, 29805, 77493, 129155, 145051, 387465, 435153, 725255, 1885663, 2175765, 5656989, 9428315, 28284945]

約数ペア:

[(1, 28284945), (3, 9428315), (5, 5656989), (13, 2175765), (15, 1885663), (39, 725255), (65, 435153), (73, 387465), (195, 145051), (219, 129155), (365, 77493), (949, 29805), (1095, 25831), (1987, 14235), (2847, 9935), (4745, 5961)]