257367025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{12241}}^1$

素因数の和:12309

約数の個数: 18

約数和(自身を含む): 330546242

約数和(自身を除く): 73179217

約数列:

[1, 5, 25, 29, 145, 725, 841, 4205, 12241, 21025, 61205, 306025, 354989, 1774945, 8874725, 10294681, 51473405, 257367025]

約数ペア:

[(1, 257367025), (5, 51473405), (25, 10294681), (29, 8874725), (145, 1774945), (725, 354989), (841, 306025), (4205, 61205), (12241, 21025)]