19386850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 72

約数和(自身を含む): 43192548

約数和(自身を除く): 23805698

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 49, 50, 70, 82, 98, 175, 193, 205, 245, 287, 350, 386, 410, 490, 574, 965, 1025, 1225, 1351, 1435, 1930, 2009, 2050, 2450, 2702, 2870, 4018, 4825, 6755, 7175, 7913, 9457, 9650, 10045, 13510, 14350, 15826, 18914, 20090, 33775, 39565, 47285, 50225, 55391, 67550, 79130, 94570, 100450, 110782, 197825, 236425, 276955, 387737, 395650, 472850, 553910, 775474, 1384775, 1938685, 2769550, 3877370, 9693425, 19386850]

約数ペア:

[(1, 19386850), (2, 9693425), (5, 3877370), (7, 2769550), (10, 1938685), (14, 1384775), (25, 775474), (35, 553910), (41, 472850), (49, 395650), (50, 387737), (70, 276955), (82, 236425), (98, 197825), (175, 110782), (193, 100450), (205, 94570), (245, 79130), (287, 67550), (350, 55391), (386, 50225), (410, 47285), (490, 39565), (574, 33775), (965, 20090), (1025, 18914), (1225, 15826), (1351, 14350), (1435, 13510), (1930, 10045), (2009, 9650), (2050, 9457), (2450, 7913), (2702, 7175), (2870, 6755), (4018, 4825)]