7978025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 10978464

約数和(自身を除く): 3000439

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 433, 737, 1675, 2165, 3685, 4763, 10825, 18425, 23815, 29011, 119075, 145055, 319121, 725275, 1595605, 7978025]

約数ペア:

[(1, 7978025), (5, 1595605), (11, 725275), (25, 319121), (55, 145055), (67, 119075), (275, 29011), (335, 23815), (433, 18425), (737, 10825), (1675, 4763), (2165, 3685)]