4639820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1669}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 9819600

約数和(自身を除く): 5179780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 1669, 2780, 3338, 6676, 8345, 16690, 33380, 231991, 463982, 927964, 1159955, 2319910, 4639820]

約数ペア:

[(1, 4639820), (2, 2319910), (4, 1159955), (5, 927964), (10, 463982), (20, 231991), (139, 33380), (278, 16690), (556, 8345), (695, 6676), (1390, 3338), (1669, 2780)]