39888020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22409}}^1$

素因数の和:22507

約数の個数: 24

約数和(自身を含む): 84709800

約数和(自身を除く): 44821780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 22409, 44818, 89636, 112045, 224090, 448180, 1994401, 3988802, 7977604, 9972005, 19944010, 39888020]

約数ペア:

[(1, 39888020), (2, 19944010), (4, 9972005), (5, 7977604), (10, 3988802), (20, 1994401), (89, 448180), (178, 224090), (356, 112045), (445, 89636), (890, 44818), (1780, 22409)]