25721380

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4057}}^1$

素因数の和:4383

約数の個数: 24

約数和(自身を含む): 54198648

約数和(自身を除く): 28477268

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 4057, 6340, 8114, 16228, 20285, 40570, 81140, 1286069, 2572138, 5144276, 6430345, 12860690, 25721380]

約数ペア:

[(1, 25721380), (2, 12860690), (4, 6430345), (5, 5144276), (10, 2572138), (20, 1286069), (317, 81140), (634, 40570), (1268, 20285), (1585, 16228), (3170, 8114), (4057, 6340)]