1028180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 2184840

約数和(自身を除く): 1156660

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 509, 1010, 1018, 2020, 2036, 2545, 5090, 10180, 51409, 102818, 205636, 257045, 514090, 1028180]

約数ペア:

[(1, 1028180), (2, 514090), (4, 257045), (5, 205636), (10, 102818), (20, 51409), (101, 10180), (202, 5090), (404, 2545), (505, 2036), (509, 2020), (1010, 1018)]