2008021225

素因数分解:

$5^2\times 7^2\times {\mathrm{1639201}}^1$

素因数の和:1639225

約数の個数: 18

約数和(自身を含む): 2896469934

約数和(自身を除く): 888448709

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 1639201, 8196005, 11474407, 40980025, 57372035, 80320849, 286860175, 401604245, 2008021225]

約数ペア:

[(1, 2008021225), (5, 401604245), (7, 286860175), (25, 80320849), (35, 57372035), (49, 40980025), (175, 11474407), (245, 8196005), (1225, 1639201)]