25891245

素因数分解:

$3^4\times 5^1\times {\mathrm{63929}}^1$

素因数の和:63946

約数の個数: 20

約数和(自身を含む): 46413180

約数和(自身を除く): 20521935

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 63929, 191787, 319645, 575361, 958935, 1726083, 2876805, 5178249, 8630415, 25891245]

約数ペア:

[(1, 25891245), (3, 8630415), (5, 5178249), (9, 2876805), (15, 1726083), (27, 958935), (45, 575361), (81, 319645), (135, 191787), (405, 63929)]