128021275

素因数分解:

$5^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 162489600

約数和(自身を除く): 34468325

約数列:

[1, 5, 25, 83, 103, 415, 515, 599, 2075, 2575, 2995, 8549, 14975, 42745, 49717, 61697, 213725, 248585, 308485, 1242925, 1542425, 5120851, 25604255, 128021275]

約数ペア:

[(1, 128021275), (5, 25604255), (25, 5120851), (83, 1542425), (103, 1242925), (415, 308485), (515, 248585), (599, 213725), (2075, 61697), (2575, 49717), (2995, 42745), (8549, 14975)]