20578520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27077}}^1$

素因数の和:27107

約数の個数: 32

約数和(自身を含む): 48740400

約数和(自身を除く): 28161880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27077, 54154, 108308, 135385, 216616, 270770, 514463, 541540, 1028926, 1083080, 2057852, 2572315, 4115704, 5144630, 10289260, 20578520]

約数ペア:

[(1, 20578520), (2, 10289260), (4, 5144630), (5, 4115704), (8, 2572315), (10, 2057852), (19, 1083080), (20, 1028926), (38, 541540), (40, 514463), (76, 270770), (95, 216616), (152, 135385), (190, 108308), (380, 54154), (760, 27077)]