20089960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45659}}^1$

素因数の和:45681

約数の個数: 32

約数和(自身を含む): 49312800

約数和(自身を除く): 29222840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45659, 91318, 182636, 228295, 365272, 456590, 502249, 913180, 1004498, 1826360, 2008996, 2511245, 4017992, 5022490, 10044980, 20089960]

約数ペア:

[(1, 20089960), (2, 10044980), (4, 5022490), (5, 4017992), (8, 2511245), (10, 2008996), (11, 1826360), (20, 1004498), (22, 913180), (40, 502249), (44, 456590), (55, 365272), (88, 228295), (110, 182636), (220, 91318), (440, 45659)]