210007900

素因数分解:

$2^2\times 5^2\times {\mathrm{2100079}}^1$

素因数の和:2100093

約数の個数: 18

約数和(自身を含む): 455717360

約数和(自身を除く): 245709460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2100079, 4200158, 8400316, 10500395, 21000790, 42001580, 52501975, 105003950, 210007900]

約数ペア:

[(1, 210007900), (2, 105003950), (4, 52501975), (5, 42001580), (10, 21000790), (20, 10500395), (25, 8400316), (50, 4200158), (100, 2100079)]