20920180

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2269}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 44047080

約数和(自身を除く): 23126900

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2269, 2305, 4538, 4610, 9076, 9220, 11345, 22690, 45380, 1046009, 2092018, 4184036, 5230045, 10460090, 20920180]

約数ペア:

[(1, 20920180), (2, 10460090), (4, 5230045), (5, 4184036), (10, 2092018), (20, 1046009), (461, 45380), (922, 22690), (1844, 11345), (2269, 9220), (2305, 9076), (4538, 4610)]