90859000

素因数分解:

$2^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{2113}}^1$

素因数の和:2177

約数の個数: 64

約数和(自身を含む): 217657440

約数和(自身を除く): 126798440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 200, 215, 250, 344, 430, 500, 860, 1000, 1075, 1720, 2113, 2150, 4226, 4300, 5375, 8452, 8600, 10565, 10750, 16904, 21130, 21500, 42260, 43000, 52825, 84520, 90859, 105650, 181718, 211300, 264125, 363436, 422600, 454295, 528250, 726872, 908590, 1056500, 1817180, 2113000, 2271475, 3634360, 4542950, 9085900, 11357375, 18171800, 22714750, 45429500, 90859000]

約数ペア:

[(1, 90859000), (2, 45429500), (4, 22714750), (5, 18171800), (8, 11357375), (10, 9085900), (20, 4542950), (25, 3634360), (40, 2271475), (43, 2113000), (50, 1817180), (86, 1056500), (100, 908590), (125, 726872), (172, 528250), (200, 454295), (215, 422600), (250, 363436), (344, 264125), (430, 211300), (500, 181718), (860, 105650), (1000, 90859), (1075, 84520), (1720, 52825), (2113, 43000), (2150, 42260), (4226, 21500), (4300, 21130), (5375, 16904), (8452, 10750), (8600, 10565)]