641168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{3643}}^1$

素因数の和:3662

約数の個数: 20

約数和(自身を含む): 1355568

約数和(自身を除く): 714400

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 3643, 7286, 14572, 29144, 40073, 58288, 80146, 160292, 320584, 641168]

約数ペア:

[(1, 641168), (2, 320584), (4, 160292), (8, 80146), (11, 58288), (16, 40073), (22, 29144), (44, 14572), (88, 7286), (176, 3643)]