13000420

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1621}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 27385848

約数和(自身を除く): 14385428

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 1621, 2005, 3242, 4010, 6484, 8020, 8105, 16210, 32420, 650021, 1300042, 2600084, 3250105, 6500210, 13000420]

約数ペア:

[(1, 13000420), (2, 6500210), (4, 3250105), (5, 2600084), (10, 1300042), (20, 650021), (401, 32420), (802, 16210), (1604, 8105), (1621, 8020), (2005, 6484), (3242, 4010)]