20178196120

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4994603}}^1$

素因数の和:4994715

約数の個数: 32

約数和(自身を含む): 45850464720

約数和(自身を除く): 25672268600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4994603, 9989206, 19978412, 24973015, 39956824, 49946030, 99892060, 199784120, 504454903, 1008909806, 2017819612, 2522274515, 4035639224, 5044549030, 10089098060, 20178196120]

約数ペア:

[(1, 20178196120), (2, 10089098060), (4, 5044549030), (5, 4035639224), (8, 2522274515), (10, 2017819612), (20, 1008909806), (40, 504454903), (101, 199784120), (202, 99892060), (404, 49946030), (505, 39956824), (808, 24973015), (1010, 19978412), (2020, 9989206), (4040, 4994603)]