208718495

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{2539}}^1$

素因数の和:2986

約数の個数: 16

約数和(自身を含む): 257312160

約数和(自身を除く): 48593665

約数列:

[1, 5, 41, 205, 401, 2005, 2539, 12695, 16441, 82205, 104099, 520495, 1018139, 5090695, 41743699, 208718495]

約数ペア:

[(1, 208718495), (5, 41743699), (41, 5090695), (205, 1018139), (401, 520495), (2005, 104099), (2539, 82205), (12695, 16441)]