810164080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{920641}}^1$

素因数の和:920665

約数の個数: 40

約数和(自身を含む): 2054872944

約数和(自身を除く): 1244708864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 920641, 1841282, 3682564, 4603205, 7365128, 9206410, 10127051, 14730256, 18412820, 20254102, 36825640, 40508204, 50635255, 73651280, 81016408, 101270510, 162032816, 202541020, 405082040, 810164080]

約数ペア:

[(1, 810164080), (2, 405082040), (4, 202541020), (5, 162032816), (8, 101270510), (10, 81016408), (11, 73651280), (16, 50635255), (20, 40508204), (22, 36825640), (40, 20254102), (44, 18412820), (55, 14730256), (80, 10127051), (88, 9206410), (110, 7365128), (176, 4603205), (220, 3682564), (440, 1841282), (880, 920641)]