19638140

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1459}}^1$

素因数の和:2141

約数の個数: 24

約数和(自身を含む): 41329680

約数和(自身を除く): 21691540

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1459, 2692, 2918, 3365, 5836, 6730, 7295, 13460, 14590, 29180, 981907, 1963814, 3927628, 4909535, 9819070, 19638140]

約数ペア:

[(1, 19638140), (2, 9819070), (4, 4909535), (5, 3927628), (10, 1963814), (20, 981907), (673, 29180), (1346, 14590), (1459, 13460), (2692, 7295), (2918, 6730), (3365, 5836)]