256470825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{263047}}^1$

素因数の和:263073

約数の個数: 24

約数和(自身を含む): 456651328

約数和(自身を除く): 200180503

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 263047, 789141, 1315235, 3419611, 3945705, 6576175, 10258833, 17098055, 19728525, 51294165, 85490275, 256470825]

約数ペア:

[(1, 256470825), (3, 85490275), (5, 51294165), (13, 19728525), (15, 17098055), (25, 10258833), (39, 6576175), (65, 3945705), (75, 3419611), (195, 1315235), (325, 789141), (975, 263047)]