40387780

素因数分解:

$2^2\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{1531}}^1$

素因数の和:2859

約数の個数: 24

約数和(自身を含む): 84934080

約数和(自身を除く): 44546300

約数列:

[1, 2, 4, 5, 10, 20, 1319, 1531, 2638, 3062, 5276, 6124, 6595, 7655, 13190, 15310, 26380, 30620, 2019389, 4038778, 8077556, 10096945, 20193890, 40387780]

約数ペア:

[(1, 40387780), (2, 20193890), (4, 10096945), (5, 8077556), (10, 4038778), (20, 2019389), (1319, 30620), (1531, 26380), (2638, 15310), (3062, 13190), (5276, 7655), (6124, 6595)]