80617960

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4591}}^1$

素因数の和:5041

約数の個数: 32

約数和(自身を含む): 181843200

約数和(自身を除く): 101225240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 4591, 8780, 9182, 17560, 18364, 22955, 36728, 45910, 91820, 183640, 2015449, 4030898, 8061796, 10077245, 16123592, 20154490, 40308980, 80617960]

約数ペア:

[(1, 80617960), (2, 40308980), (4, 20154490), (5, 16123592), (8, 10077245), (10, 8061796), (20, 4030898), (40, 2015449), (439, 183640), (878, 91820), (1756, 45910), (2195, 36728), (3512, 22955), (4390, 18364), (4591, 17560), (8780, 9182)]