689456

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1051}}^1$

素因数の和:1100

約数の個数: 20

約数和(自身を含む): 1369704

約数和(自身を除く): 680248

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1051, 2102, 4204, 8408, 16816, 43091, 86182, 172364, 344728, 689456]

約数ペア:

[(1, 689456), (2, 344728), (4, 172364), (8, 86182), (16, 43091), (41, 16816), (82, 8408), (164, 4204), (328, 2102), (656, 1051)]