289143568

素因数分解:

$2^4\times 7^1\times {\mathrm{2581639}}^1$

素因数の和:2581654

約数の個数: 20

約数和(自身を含む): 640246720

約数和(自身を除く): 351103152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2581639, 5163278, 10326556, 18071473, 20653112, 36142946, 41306224, 72285892, 144571784, 289143568]

約数ペア:

[(1, 289143568), (2, 144571784), (4, 72285892), (7, 41306224), (8, 36142946), (14, 20653112), (16, 18071473), (28, 10326556), (56, 5163278), (112, 2581639)]