20218180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10009}}^1$

素因数の和:10119

約数の個数: 24

約数和(自身を含む): 42882840

約数和(自身を除く): 22664660

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10009, 20018, 40036, 50045, 100090, 200180, 1010909, 2021818, 4043636, 5054545, 10109090, 20218180]

約数ペア:

[(1, 20218180), (2, 10109090), (4, 5054545), (5, 4043636), (10, 2021818), (20, 1010909), (101, 200180), (202, 100090), (404, 50045), (505, 40036), (1010, 20018), (2020, 10009)]