2019408880

素因数分解:

$2^4\times 5^1\times {\mathrm{25242611}}^1$

素因数の和:25242624

約数の個数: 20

約数和(自身を含む): 4695125832

約数和(自身を除く): 2675716952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25242611, 50485222, 100970444, 126213055, 201940888, 252426110, 403881776, 504852220, 1009704440, 2019408880]

約数ペア:

[(1, 2019408880), (2, 1009704440), (4, 504852220), (5, 403881776), (8, 252426110), (10, 201940888), (16, 126213055), (20, 100970444), (40, 50485222), (80, 25242611)]