20808007525

素因数分解:

$5^2\times {\mathrm{3331}}^1\times {\mathrm{249871}}^1$

素因数の和:253212

約数の個数: 12

約数和(自身を含む): 25809778624

約数和(自身を除く): 5001771099

約数列:

[1, 5, 25, 3331, 16655, 83275, 249871, 1249355, 6246775, 832320301, 4161601505, 20808007525]

約数ペア:

[(1, 20808007525), (5, 4161601505), (25, 832320301), (3331, 6246775), (16655, 1249355), (83275, 249871)]