81406560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{937}}^1$

素因数の和:1136

約数の個数: 96

約数和(自身を含む): 258122592

約数和(自身を除く): 176716032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 181, 240, 362, 480, 543, 724, 905, 937, 1086, 1448, 1810, 1874, 2172, 2715, 2811, 2896, 3620, 3748, 4344, 4685, 5430, 5622, 5792, 7240, 7496, 8688, 9370, 10860, 11244, 14055, 14480, 14992, 17376, 18740, 21720, 22488, 28110, 28960, 29984, 37480, 43440, 44976, 56220, 74960, 86880, 89952, 112440, 149920, 169597, 224880, 339194, 449760, 508791, 678388, 847985, 1017582, 1356776, 1695970, 2035164, 2543955, 2713552, 3391940, 4070328, 5087910, 5427104, 6783880, 8140656, 10175820, 13567760, 16281312, 20351640, 27135520, 40703280, 81406560]

約数ペア:

[(1, 81406560), (2, 40703280), (3, 27135520), (4, 20351640), (5, 16281312), (6, 13567760), (8, 10175820), (10, 8140656), (12, 6783880), (15, 5427104), (16, 5087910), (20, 4070328), (24, 3391940), (30, 2713552), (32, 2543955), (40, 2035164), (48, 1695970), (60, 1356776), (80, 1017582), (96, 847985), (120, 678388), (160, 508791), (181, 449760), (240, 339194), (362, 224880), (480, 169597), (543, 149920), (724, 112440), (905, 89952), (937, 86880), (1086, 74960), (1448, 56220), (1810, 44976), (1874, 43440), (2172, 37480), (2715, 29984), (2811, 28960), (2896, 28110), (3620, 22488), (3748, 21720), (4344, 18740), (4685, 17376), (5430, 14992), (5622, 14480), (5792, 14055), (7240, 11244), (7496, 10860), (8688, 9370)]