64873180

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{18121}}^1$

素因数の和:18309

約数の個数: 24

約数和(自身を含む): 137002320

約数和(自身を除く): 72129140

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 18121, 36242, 72484, 90605, 181210, 362420, 3243659, 6487318, 12974636, 16218295, 32436590, 64873180]

約数ペア:

[(1, 64873180), (2, 32436590), (4, 16218295), (5, 12974636), (10, 6487318), (20, 3243659), (179, 362420), (358, 181210), (716, 90605), (895, 72484), (1790, 36242), (3580, 18121)]