81515536

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{38891}}^1$

素因数の和:39030

約数の個数: 20

約数和(自身を含む): 159146064

約数和(自身を除く): 77630528

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 38891, 77782, 155564, 311128, 622256, 5094721, 10189442, 20378884, 40757768, 81515536]

約数ペア:

[(1, 81515536), (2, 40757768), (4, 20378884), (8, 10189442), (16, 5094721), (131, 622256), (262, 311128), (524, 155564), (1048, 77782), (2096, 38891)]