20643400

素因数分解:

$2^3\times 5^2\times {\mathrm{103217}}^1$

素因数の和:103233

約数の個数: 24

約数和(自身を含む): 47996370

約数和(自身を除く): 27352970

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 103217, 206434, 412868, 516085, 825736, 1032170, 2064340, 2580425, 4128680, 5160850, 10321700, 20643400]

約数ペア:

[(1, 20643400), (2, 10321700), (4, 5160850), (5, 4128680), (8, 2580425), (10, 2064340), (20, 1032170), (25, 825736), (40, 516085), (50, 412868), (100, 206434), (200, 103217)]