13457140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6173}}^1$

素因数の和:6291

約数の個数: 24

約数和(自身を含む): 28523880

約数和(自身を除く): 15066740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 6173, 12346, 24692, 30865, 61730, 123460, 672857, 1345714, 2691428, 3364285, 6728570, 13457140]

約数ペア:

[(1, 13457140), (2, 6728570), (4, 3364285), (5, 2691428), (10, 1345714), (20, 672857), (109, 123460), (218, 61730), (436, 30865), (545, 24692), (1090, 12346), (2180, 6173)]