19620545

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 8469055

約数列:

[1, 5, 7, 35, 37, 109, 139, 185, 259, 545, 695, 763, 973, 1295, 3815, 4033, 4865, 5143, 15151, 20165, 25715, 28231, 36001, 75755, 106057, 141155, 180005, 530285, 560587, 2802935, 3924109, 19620545]

約数ペア:

[(1, 19620545), (5, 3924109), (7, 2802935), (35, 560587), (37, 530285), (109, 180005), (139, 141155), (185, 106057), (259, 75755), (545, 36001), (695, 28231), (763, 25715), (973, 20165), (1295, 15151), (3815, 5143), (4033, 4865)]