20041940

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1489}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 42178920

約数和(自身を除く): 22136980

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1489, 2692, 2978, 3365, 5956, 6730, 7445, 13460, 14890, 29780, 1002097, 2004194, 4008388, 5010485, 10020970, 20041940]

約数ペア:

[(1, 20041940), (2, 10020970), (4, 5010485), (5, 4008388), (10, 2004194), (20, 1002097), (673, 29780), (1346, 14890), (1489, 13460), (2692, 7445), (2978, 6730), (3365, 5956)]