25433620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17911}}^1$

素因数の和:17991

約数の個数: 24

約数和(自身を含む): 54165888

約数和(自身を除く): 28732268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17911, 35822, 71644, 89555, 179110, 358220, 1271681, 2543362, 5086724, 6358405, 12716810, 25433620]

約数ペア:

[(1, 25433620), (2, 12716810), (4, 6358405), (5, 5086724), (10, 2543362), (20, 1271681), (71, 358220), (142, 179110), (284, 89555), (355, 71644), (710, 35822), (1420, 17911)]