20605168

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4583}}^1$

素因数の和:4872

約数の個数: 20

約数和(自身を含む): 40073328

約数和(自身を除く): 19468160

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4583, 9166, 18332, 36664, 73328, 1287823, 2575646, 5151292, 10302584, 20605168]

約数ペア:

[(1, 20605168), (2, 10302584), (4, 5151292), (8, 2575646), (16, 1287823), (281, 73328), (562, 36664), (1124, 18332), (2248, 9166), (4496, 4583)]