128422928

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{73637}}^1$

素因数の和:73754

約数の個数: 20

約数和(自身を含む): 251105580

約数和(自身を除く): 122682652

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 73637, 147274, 294548, 589096, 1178192, 8026433, 16052866, 32105732, 64211464, 128422928]

約数ペア:

[(1, 128422928), (2, 64211464), (4, 32105732), (8, 16052866), (16, 8026433), (109, 1178192), (218, 589096), (436, 294548), (872, 147274), (1744, 73637)]