20264465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4391}}^1$

素因数の和:4480

約数の個数: 16

約数和(自身を含む): 26562816

約数和(自身を除く): 6298351

約数列:

[1, 5, 13, 65, 71, 355, 923, 4391, 4615, 21955, 57083, 285415, 311761, 1558805, 4052893, 20264465]

約数ペア:

[(1, 20264465), (5, 4052893), (13, 1558805), (65, 311761), (71, 285415), (355, 57083), (923, 21955), (4391, 4615)]