641984

素因数分解:

$2^6\times 7^1\times {\mathrm{1433}}^1$

素因数の和:1452

約数の個数: 28

約数和(自身を含む): 1456944

約数和(自身を除く): 814960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 1433, 2866, 5732, 10031, 11464, 20062, 22928, 40124, 45856, 80248, 91712, 160496, 320992, 641984]

約数ペア:

[(1, 641984), (2, 320992), (4, 160496), (7, 91712), (8, 80248), (14, 45856), (16, 40124), (28, 22928), (32, 20062), (56, 11464), (64, 10031), (112, 5732), (224, 2866), (448, 1433)]