889284820

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{210731}}^1$

素因数の和:210951

約数の個数: 24

約数和(自身を含む): 1876357728

約数和(自身を除く): 987072908

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 210731, 421462, 842924, 1053655, 2107310, 4214620, 44464241, 88928482, 177856964, 222321205, 444642410, 889284820]

約数ペア:

[(1, 889284820), (2, 444642410), (4, 222321205), (5, 177856964), (10, 88928482), (20, 44464241), (211, 4214620), (422, 2107310), (844, 1053655), (1055, 842924), (2110, 421462), (4220, 210731)]