209487025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{3947}}^1$

素因数の和:4161

約数の個数: 24

約数和(自身を含む): 284919264

約数和(自身を除く): 75432239

約数列:

[1, 5, 11, 25, 55, 193, 275, 965, 2123, 3947, 4825, 10615, 19735, 43417, 53075, 98675, 217085, 761771, 1085425, 3808855, 8379481, 19044275, 41897405, 209487025]

約数ペア:

[(1, 209487025), (5, 41897405), (11, 19044275), (25, 8379481), (55, 3808855), (193, 1085425), (275, 761771), (965, 217085), (2123, 98675), (3947, 53075), (4825, 43417), (10615, 19735)]