27738440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16127}}^1$

素因数の和:16181

約数の個数: 32

約数和(自身を含む): 63866880

約数和(自身を除く): 36128440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16127, 32254, 64508, 80635, 129016, 161270, 322540, 645080, 693461, 1386922, 2773844, 3467305, 5547688, 6934610, 13869220, 27738440]

約数ペア:

[(1, 27738440), (2, 13869220), (4, 6934610), (5, 5547688), (8, 3467305), (10, 2773844), (20, 1386922), (40, 693461), (43, 645080), (86, 322540), (172, 161270), (215, 129016), (344, 80635), (430, 64508), (860, 32254), (1720, 16127)]