20578072

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36229}}^1$

素因数の和:36306

約数の個数: 16

約数和(自身を含む): 39128400

約数和(自身を除く): 18550328

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36229, 72458, 144916, 289832, 2572259, 5144518, 10289036, 20578072]

約数ペア:

[(1, 20578072), (2, 10289036), (4, 5144518), (8, 2572259), (71, 289832), (142, 144916), (284, 72458), (568, 36229)]