138975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 245520

約数和(自身を除く): 106545

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 109, 255, 327, 425, 545, 1275, 1635, 1853, 2725, 5559, 8175, 9265, 27795, 46325, 138975]

約数ペア:

[(1, 138975), (3, 46325), (5, 27795), (15, 9265), (17, 8175), (25, 5559), (51, 2725), (75, 1853), (85, 1635), (109, 1275), (255, 545), (327, 425)]