18941020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{701}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 45759168

約数和(自身を除く): 26818148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 701, 772, 965, 1351, 1402, 1930, 2702, 2804, 3505, 3860, 4907, 5404, 6755, 7010, 9814, 13510, 14020, 19628, 24535, 27020, 49070, 98140, 135293, 270586, 541172, 676465, 947051, 1352930, 1894102, 2705860, 3788204, 4735255, 9470510, 18941020]

約数ペア:

[(1, 18941020), (2, 9470510), (4, 4735255), (5, 3788204), (7, 2705860), (10, 1894102), (14, 1352930), (20, 947051), (28, 676465), (35, 541172), (70, 270586), (140, 135293), (193, 98140), (386, 49070), (701, 27020), (772, 24535), (965, 19628), (1351, 14020), (1402, 13510), (1930, 9814), (2702, 7010), (2804, 6755), (3505, 5404), (3860, 4907)]