28478975

素因数分解:

$5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1493}}^1$

素因数の和:1619

約数の個数: 24

約数和(自身を含む): 40756320

約数和(自身を除く): 12277345

約数列:

[1, 5, 7, 25, 35, 109, 175, 545, 763, 1493, 2725, 3815, 7465, 10451, 19075, 37325, 52255, 162737, 261275, 813685, 1139159, 4068425, 5695795, 28478975]

約数ペア:

[(1, 28478975), (5, 5695795), (7, 4068425), (25, 1139159), (35, 813685), (109, 261275), (175, 162737), (545, 52255), (763, 37325), (1493, 19075), (2725, 10451), (3815, 7465)]