81330200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 226246680

約数和(自身を除く): 144916480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 43, 49, 50, 56, 70, 86, 98, 100, 140, 172, 175, 193, 196, 200, 215, 245, 280, 301, 344, 350, 386, 392, 430, 490, 602, 700, 772, 860, 965, 980, 1075, 1204, 1225, 1351, 1400, 1505, 1544, 1720, 1930, 1960, 2107, 2150, 2408, 2450, 2702, 3010, 3860, 4214, 4300, 4825, 4900, 5404, 6020, 6755, 7525, 7720, 8299, 8428, 8600, 9457, 9650, 9800, 10535, 10808, 12040, 13510, 15050, 16598, 16856, 18914, 19300, 21070, 27020, 30100, 33196, 33775, 37828, 38600, 41495, 42140, 47285, 52675, 54040, 58093, 60200, 66392, 67550, 75656, 82990, 84280, 94570, 105350, 116186, 135100, 165980, 189140, 207475, 210700, 232372, 236425, 270200, 290465, 331960, 378280, 406651, 414950, 421400, 464744, 472850, 580930, 813302, 829900, 945700, 1161860, 1452325, 1626604, 1659800, 1891400, 2033255, 2323720, 2904650, 3253208, 4066510, 5809300, 8133020, 10166275, 11618600, 16266040, 20332550, 40665100, 81330200]

約数ペア:

[(1, 81330200), (2, 40665100), (4, 20332550), (5, 16266040), (7, 11618600), (8, 10166275), (10, 8133020), (14, 5809300), (20, 4066510), (25, 3253208), (28, 2904650), (35, 2323720), (40, 2033255), (43, 1891400), (49, 1659800), (50, 1626604), (56, 1452325), (70, 1161860), (86, 945700), (98, 829900), (100, 813302), (140, 580930), (172, 472850), (175, 464744), (193, 421400), (196, 414950), (200, 406651), (215, 378280), (245, 331960), (280, 290465), (301, 270200), (344, 236425), (350, 232372), (386, 210700), (392, 207475), (430, 189140), (490, 165980), (602, 135100), (700, 116186), (772, 105350), (860, 94570), (965, 84280), (980, 82990), (1075, 75656), (1204, 67550), (1225, 66392), (1351, 60200), (1400, 58093), (1505, 54040), (1544, 52675), (1720, 47285), (1930, 42140), (1960, 41495), (2107, 38600), (2150, 37828), (2408, 33775), (2450, 33196), (2702, 30100), (3010, 27020), (3860, 21070), (4214, 19300), (4300, 18914), (4825, 16856), (4900, 16598), (5404, 15050), (6020, 13510), (6755, 12040), (7525, 10808), (7720, 10535), (8299, 9800), (8428, 9650), (8600, 9457)]