28920260

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1783}}^1$

素因数の和:2603

約数の個数: 24

約数和(自身を含む): 60841536

約数和(自身を除く): 31921276

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 1783, 3244, 3566, 4055, 7132, 8110, 8915, 16220, 17830, 35660, 1446013, 2892026, 5784052, 7230065, 14460130, 28920260]

約数ペア:

[(1, 28920260), (2, 14460130), (4, 7230065), (5, 5784052), (10, 2892026), (20, 1446013), (811, 35660), (1622, 17830), (1783, 16220), (3244, 8915), (3566, 8110), (4055, 7132)]