19965020

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{3407}}^1$

素因数の和:3709

約数の個数: 24

約数和(自身を含む): 42081984

約数和(自身を除く): 22116964

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 3407, 5860, 6814, 13628, 17035, 34070, 68140, 998251, 1996502, 3993004, 4991255, 9982510, 19965020]

約数ペア:

[(1, 19965020), (2, 9982510), (4, 4991255), (5, 3993004), (10, 1996502), (20, 998251), (293, 68140), (586, 34070), (1172, 17035), (1465, 13628), (2930, 6814), (3407, 5860)]