128220465

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{181873}}^1$

素因数の和:181928

約数の個数: 16

約数和(自身を含む): 209518848

約数和(自身を除く): 81298383

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 181873, 545619, 909365, 2728095, 8548031, 25644093, 42740155, 128220465]

約数ペア:

[(1, 128220465), (3, 42740155), (5, 25644093), (15, 8548031), (47, 2728095), (141, 909365), (235, 545619), (705, 181873)]