890757640

素因数分解:

$2^3\times 5^1\times {\mathrm{22268941}}^1$

素因数の和:22268952

約数の個数: 16

約数和(自身を含む): 2004204780

約数和(自身を除く): 1113447140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22268941, 44537882, 89075764, 111344705, 178151528, 222689410, 445378820, 890757640]

約数ペア:

[(1, 890757640), (2, 445378820), (4, 222689410), (5, 178151528), (8, 111344705), (10, 89075764), (20, 44537882), (40, 22268941)]