25407440

素因数分解:

$2^4\times 5^1\times {\mathrm{317593}}^1$

素因数の和:317606

約数の個数: 20

約数和(自身を含む): 59072484

約数和(自身を除く): 33665044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317593, 635186, 1270372, 1587965, 2540744, 3175930, 5081488, 6351860, 12703720, 25407440]

約数ペア:

[(1, 25407440), (2, 12703720), (4, 6351860), (5, 5081488), (8, 3175930), (10, 2540744), (16, 1587965), (20, 1270372), (40, 635186), (80, 317593)]