20641225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1597}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 28533888

約数和(自身を除く): 7892663

約数列:

[1, 5, 11, 25, 47, 55, 235, 275, 517, 1175, 1597, 2585, 7985, 12925, 17567, 39925, 75059, 87835, 375295, 439175, 825649, 1876475, 4128245, 20641225]

約数ペア:

[(1, 20641225), (5, 4128245), (11, 1876475), (25, 825649), (47, 439175), (55, 375295), (235, 87835), (275, 75059), (517, 39925), (1175, 17567), (1597, 12925), (2585, 7985)]