20354800

素因数分解:

$2^4\times 5^2\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:506

約数の個数: 60

約数和(自身を含む): 49372336

約数和(自身を除く): 29017536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 151, 200, 302, 337, 400, 604, 674, 755, 1208, 1348, 1510, 1685, 2416, 2696, 3020, 3370, 3775, 5392, 6040, 6740, 7550, 8425, 12080, 13480, 15100, 16850, 26960, 30200, 33700, 50887, 60400, 67400, 101774, 134800, 203548, 254435, 407096, 508870, 814192, 1017740, 1272175, 2035480, 2544350, 4070960, 5088700, 10177400, 20354800]

約数ペア:

[(1, 20354800), (2, 10177400), (4, 5088700), (5, 4070960), (8, 2544350), (10, 2035480), (16, 1272175), (20, 1017740), (25, 814192), (40, 508870), (50, 407096), (80, 254435), (100, 203548), (151, 134800), (200, 101774), (302, 67400), (337, 60400), (400, 50887), (604, 33700), (674, 30200), (755, 26960), (1208, 16850), (1348, 15100), (1510, 13480), (1685, 12080), (2416, 8425), (2696, 7550), (3020, 6740), (3370, 6040), (3775, 5392)]