64936880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{439}}^1$

素因数の和:538

約数の個数: 60

約数和(自身を含む): 154923120

約数和(自身を除く): 89986240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 439, 688, 860, 878, 1720, 1756, 1849, 2195, 3440, 3512, 3698, 4390, 7024, 7396, 8780, 9245, 14792, 17560, 18490, 18877, 29584, 35120, 36980, 37754, 73960, 75508, 94385, 147920, 151016, 188770, 302032, 377540, 755080, 811711, 1510160, 1623422, 3246844, 4058555, 6493688, 8117110, 12987376, 16234220, 32468440, 64936880]

約数ペア:

[(1, 64936880), (2, 32468440), (4, 16234220), (5, 12987376), (8, 8117110), (10, 6493688), (16, 4058555), (20, 3246844), (40, 1623422), (43, 1510160), (80, 811711), (86, 755080), (172, 377540), (215, 302032), (344, 188770), (430, 151016), (439, 147920), (688, 94385), (860, 75508), (878, 73960), (1720, 37754), (1756, 36980), (1849, 35120), (2195, 29584), (3440, 18877), (3512, 18490), (3698, 17560), (4390, 14792), (7024, 9245), (7396, 8780)]