180897140

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{9127}}^1$

素因数の和:10127

約数の個数: 24

約数和(自身を含む): 380308992

約数和(自身を除く): 199411852

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 9127, 9910, 18254, 19820, 36508, 45635, 91270, 182540, 9044857, 18089714, 36179428, 45224285, 90448570, 180897140]

約数ペア:

[(1, 180897140), (2, 90448570), (4, 45224285), (5, 36179428), (10, 18089714), (20, 9044857), (991, 182540), (1982, 91270), (3964, 45635), (4955, 36508), (9127, 19820), (9910, 18254)]