81589920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 192

約数和(自身を含む): 271434240

約数和(自身を除く): 189844320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 59, 60, 67, 80, 86, 96, 118, 120, 129, 134, 160, 172, 177, 201, 215, 236, 240, 258, 268, 295, 335, 344, 354, 402, 430, 472, 480, 516, 536, 590, 645, 670, 688, 708, 804, 860, 885, 944, 1005, 1032, 1072, 1180, 1290, 1340, 1376, 1416, 1608, 1720, 1770, 1888, 2010, 2064, 2144, 2360, 2537, 2580, 2680, 2832, 2881, 3216, 3440, 3540, 3953, 4020, 4128, 4720, 5074, 5160, 5360, 5664, 5762, 6432, 6880, 7080, 7611, 7906, 8040, 8643, 9440, 10148, 10320, 10720, 11524, 11859, 12685, 14160, 14405, 15222, 15812, 16080, 17286, 19765, 20296, 20640, 23048, 23718, 25370, 28320, 28810, 30444, 31624, 32160, 34572, 38055, 39530, 40592, 43215, 46096, 47436, 50740, 57620, 59295, 60888, 63248, 69144, 76110, 79060, 81184, 86430, 92192, 94872, 101480, 115240, 118590, 121776, 126496, 138288, 152220, 158120, 169979, 172860, 189744, 202960, 230480, 237180, 243552, 276576, 304440, 316240, 339958, 345720, 379488, 405920, 460960, 474360, 509937, 608880, 632480, 679916, 691440, 849895, 948720, 1019874, 1217760, 1359832, 1382880, 1699790, 1897440, 2039748, 2549685, 2719664, 3399580, 4079496, 5099370, 5439328, 6799160, 8158992, 10198740, 13598320, 16317984, 20397480, 27196640, 40794960, 81589920]

約数ペア:

[(1, 81589920), (2, 40794960), (3, 27196640), (4, 20397480), (5, 16317984), (6, 13598320), (8, 10198740), (10, 8158992), (12, 6799160), (15, 5439328), (16, 5099370), (20, 4079496), (24, 3399580), (30, 2719664), (32, 2549685), (40, 2039748), (43, 1897440), (48, 1699790), (59, 1382880), (60, 1359832), (67, 1217760), (80, 1019874), (86, 948720), (96, 849895), (118, 691440), (120, 679916), (129, 632480), (134, 608880), (160, 509937), (172, 474360), (177, 460960), (201, 405920), (215, 379488), (236, 345720), (240, 339958), (258, 316240), (268, 304440), (295, 276576), (335, 243552), (344, 237180), (354, 230480), (402, 202960), (430, 189744), (472, 172860), (480, 169979), (516, 158120), (536, 152220), (590, 138288), (645, 126496), (670, 121776), (688, 118590), (708, 115240), (804, 101480), (860, 94872), (885, 92192), (944, 86430), (1005, 81184), (1032, 79060), (1072, 76110), (1180, 69144), (1290, 63248), (1340, 60888), (1376, 59295), (1416, 57620), (1608, 50740), (1720, 47436), (1770, 46096), (1888, 43215), (2010, 40592), (2064, 39530), (2144, 38055), (2360, 34572), (2537, 32160), (2580, 31624), (2680, 30444), (2832, 28810), (2881, 28320), (3216, 25370), (3440, 23718), (3540, 23048), (3953, 20640), (4020, 20296), (4128, 19765), (4720, 17286), (5074, 16080), (5160, 15812), (5360, 15222), (5664, 14405), (5762, 14160), (6432, 12685), (6880, 11859), (7080, 11524), (7611, 10720), (7906, 10320), (8040, 10148), (8643, 9440)]