2019581680

素因数分解:

$2^4\times 5^1\times {\mathrm{25244771}}^1$

素因数の和:25244784

約数の個数: 20

約数和(自身を含む): 4695527592

約数和(自身を除く): 2675945912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25244771, 50489542, 100979084, 126223855, 201958168, 252447710, 403916336, 504895420, 1009790840, 2019581680]

約数ペア:

[(1, 2019581680), (2, 1009790840), (4, 504895420), (5, 403916336), (8, 252447710), (10, 201958168), (16, 126223855), (20, 100979084), (40, 50489542), (80, 25244771)]