81208320

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:356

約数の個数: 176

約数和(自身を含む): 275902848

約数和(自身を除く): 194694528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 311, 320, 340, 384, 408, 480, 510, 512, 544, 622, 640, 680, 768, 816, 933, 960, 1020, 1024, 1088, 1244, 1280, 1360, 1536, 1555, 1632, 1866, 1920, 2040, 2176, 2488, 2560, 2720, 3072, 3110, 3264, 3732, 3840, 4080, 4352, 4665, 4976, 5120, 5287, 5440, 6220, 6528, 7464, 7680, 8160, 8704, 9330, 9952, 10574, 10880, 12440, 13056, 14928, 15360, 15861, 16320, 17408, 18660, 19904, 21148, 21760, 24880, 26112, 26435, 29856, 31722, 32640, 37320, 39808, 42296, 43520, 49760, 52224, 52870, 59712, 63444, 65280, 74640, 79305, 79616, 84592, 87040, 99520, 105740, 119424, 126888, 130560, 149280, 158610, 159232, 169184, 199040, 211480, 238848, 253776, 261120, 298560, 317220, 318464, 338368, 398080, 422960, 477696, 507552, 597120, 634440, 676736, 796160, 845920, 955392, 1015104, 1194240, 1268880, 1353472, 1592320, 1691840, 2030208, 2388480, 2537760, 2706944, 3383680, 4060416, 4776960, 5075520, 5413888, 6767360, 8120832, 10151040, 13534720, 16241664, 20302080, 27069440, 40604160, 81208320]

約数ペア:

[(1, 81208320), (2, 40604160), (3, 27069440), (4, 20302080), (5, 16241664), (6, 13534720), (8, 10151040), (10, 8120832), (12, 6767360), (15, 5413888), (16, 5075520), (17, 4776960), (20, 4060416), (24, 3383680), (30, 2706944), (32, 2537760), (34, 2388480), (40, 2030208), (48, 1691840), (51, 1592320), (60, 1353472), (64, 1268880), (68, 1194240), (80, 1015104), (85, 955392), (96, 845920), (102, 796160), (120, 676736), (128, 634440), (136, 597120), (160, 507552), (170, 477696), (192, 422960), (204, 398080), (240, 338368), (255, 318464), (256, 317220), (272, 298560), (311, 261120), (320, 253776), (340, 238848), (384, 211480), (408, 199040), (480, 169184), (510, 159232), (512, 158610), (544, 149280), (622, 130560), (640, 126888), (680, 119424), (768, 105740), (816, 99520), (933, 87040), (960, 84592), (1020, 79616), (1024, 79305), (1088, 74640), (1244, 65280), (1280, 63444), (1360, 59712), (1536, 52870), (1555, 52224), (1632, 49760), (1866, 43520), (1920, 42296), (2040, 39808), (2176, 37320), (2488, 32640), (2560, 31722), (2720, 29856), (3072, 26435), (3110, 26112), (3264, 24880), (3732, 21760), (3840, 21148), (4080, 19904), (4352, 18660), (4665, 17408), (4976, 16320), (5120, 15861), (5287, 15360), (5440, 14928), (6220, 13056), (6528, 12440), (7464, 10880), (7680, 10574), (8160, 9952), (8704, 9330)]