209905264

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{51047}}^1$

素因数の和:51312

約数の個数: 20

約数和(自身を含む): 408281904

約数和(自身を除く): 198376640

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 51047, 102094, 204188, 408376, 816752, 13119079, 26238158, 52476316, 104952632, 209905264]

約数ペア:

[(1, 209905264), (2, 104952632), (4, 52476316), (8, 26238158), (16, 13119079), (257, 816752), (514, 408376), (1028, 204188), (2056, 102094), (4112, 51047)]