55642280

素因数分解:

$2^3\times 5^1\times {\mathrm{1391057}}^1$

素因数の和:1391068

約数の個数: 16

約数和(自身を含む): 125195220

約数和(自身を除く): 69552940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1391057, 2782114, 5564228, 6955285, 11128456, 13910570, 27821140, 55642280]

約数ペア:

[(1, 55642280), (2, 27821140), (4, 13910570), (5, 11128456), (8, 6955285), (10, 5564228), (20, 2782114), (40, 1391057)]