489605020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{275059}}^1$

素因数の和:275157

約数の個数: 24

約数和(自身を含む): 1039726800

約数和(自身を除く): 550121780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 275059, 550118, 1100236, 1375295, 2750590, 5501180, 24480251, 48960502, 97921004, 122401255, 244802510, 489605020]

約数ペア:

[(1, 489605020), (2, 244802510), (4, 122401255), (5, 97921004), (10, 48960502), (20, 24480251), (89, 5501180), (178, 2750590), (356, 1375295), (445, 1100236), (890, 550118), (1780, 275059)]