28530775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12541}}^1$

素因数の和:12571

約数の個数: 24

約数和(自身を含む): 43545824

約数和(自身を除く): 15015049

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 12541, 62705, 87787, 163033, 313525, 438935, 815165, 1141231, 2194675, 4075825, 5706155, 28530775]

約数ペア:

[(1, 28530775), (5, 5706155), (7, 4075825), (13, 2194675), (25, 1141231), (35, 815165), (65, 438935), (91, 313525), (175, 163033), (325, 87787), (455, 62705), (2275, 12541)]