13561780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6221}}^1$

素因数の和:6339

約数の個数: 24

約数和(自身を含む): 28745640

約数和(自身を除く): 15183860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 6221, 12442, 24884, 31105, 62210, 124420, 678089, 1356178, 2712356, 3390445, 6780890, 13561780]

約数ペア:

[(1, 13561780), (2, 6780890), (4, 3390445), (5, 2712356), (10, 1356178), (20, 678089), (109, 124420), (218, 62210), (436, 31105), (545, 24884), (1090, 12442), (2180, 6221)]