81557760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 265196736

約数和(自身を除く): 183638976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 128, 134, 160, 192, 201, 240, 256, 268, 317, 320, 335, 384, 402, 480, 536, 634, 640, 670, 768, 804, 951, 960, 1005, 1072, 1268, 1280, 1340, 1585, 1608, 1902, 1920, 2010, 2144, 2536, 2680, 3170, 3216, 3804, 3840, 4020, 4288, 4755, 5072, 5360, 6340, 6432, 7608, 8040, 8576, 9510, 10144, 10720, 12680, 12864, 15216, 16080, 17152, 19020, 20288, 21239, 21440, 25360, 25728, 30432, 32160, 38040, 40576, 42478, 42880, 50720, 51456, 60864, 63717, 64320, 76080, 81152, 84956, 85760, 101440, 106195, 121728, 127434, 128640, 152160, 169912, 202880, 212390, 243456, 254868, 257280, 304320, 318585, 339824, 405760, 424780, 509736, 608640, 637170, 679648, 849560, 1019472, 1217280, 1274340, 1359296, 1699120, 2038944, 2548680, 2718592, 3398240, 4077888, 5097360, 5437184, 6796480, 8155776, 10194720, 13592960, 16311552, 20389440, 27185920, 40778880, 81557760]

約数ペア:

[(1, 81557760), (2, 40778880), (3, 27185920), (4, 20389440), (5, 16311552), (6, 13592960), (8, 10194720), (10, 8155776), (12, 6796480), (15, 5437184), (16, 5097360), (20, 4077888), (24, 3398240), (30, 2718592), (32, 2548680), (40, 2038944), (48, 1699120), (60, 1359296), (64, 1274340), (67, 1217280), (80, 1019472), (96, 849560), (120, 679648), (128, 637170), (134, 608640), (160, 509736), (192, 424780), (201, 405760), (240, 339824), (256, 318585), (268, 304320), (317, 257280), (320, 254868), (335, 243456), (384, 212390), (402, 202880), (480, 169912), (536, 152160), (634, 128640), (640, 127434), (670, 121728), (768, 106195), (804, 101440), (951, 85760), (960, 84956), (1005, 81152), (1072, 76080), (1268, 64320), (1280, 63717), (1340, 60864), (1585, 51456), (1608, 50720), (1902, 42880), (1920, 42478), (2010, 40576), (2144, 38040), (2536, 32160), (2680, 30432), (3170, 25728), (3216, 25360), (3804, 21440), (3840, 21239), (4020, 20288), (4288, 19020), (4755, 17152), (5072, 16080), (5360, 15216), (6340, 12864), (6432, 12680), (7608, 10720), (8040, 10144), (8576, 9510)]