209701855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{25589}}^1$

素因数の和:25754

約数の個数: 16

約数和(自身を含む): 276372000

約数和(自身を除く): 66670145

約数列:

[1, 5, 11, 55, 149, 745, 1639, 8195, 25589, 127945, 281479, 1407395, 3812761, 19063805, 41940371, 209701855]

約数ペア:

[(1, 209701855), (5, 41940371), (11, 19063805), (55, 3812761), (149, 1407395), (745, 281479), (1639, 127945), (8195, 25589)]