61709260

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28307}}^1$

素因数の和:28425

約数の個数: 24

約数和(自身を含む): 130782960

約数和(自身を除く): 69073700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 28307, 56614, 113228, 141535, 283070, 566140, 3085463, 6170926, 12341852, 15427315, 30854630, 61709260]

約数ペア:

[(1, 61709260), (2, 30854630), (4, 15427315), (5, 12341852), (10, 6170926), (20, 3085463), (109, 566140), (218, 283070), (436, 141535), (545, 113228), (1090, 56614), (2180, 28307)]