28680705

素因数分解:

$3^2\times 5^1\times {\mathrm{637349}}^1$

素因数の和:637360

約数の個数: 12

約数和(自身を含む): 49713300

約数和(自身を除く): 21032595

約数列:

[1, 3, 5, 9, 15, 45, 637349, 1912047, 3186745, 5736141, 9560235, 28680705]

約数ペア:

[(1, 28680705), (3, 9560235), (5, 5736141), (9, 3186745), (15, 1912047), (45, 637349)]