81461520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{2309}}^1$

素因数の和:2342

約数の個数: 180

約数和(自身を含む): 318378060

約数和(自身を除く): 236916540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2309, 2352, 2520, 2940, 3528, 3920, 4410, 4618, 5040, 5880, 6927, 7056, 8820, 9236, 11545, 11760, 13854, 16163, 17640, 18472, 20781, 23090, 27708, 32326, 34635, 35280, 36944, 41562, 46180, 48489, 55416, 64652, 69270, 80815, 83124, 92360, 96978, 103905, 110832, 113141, 129304, 138540, 145467, 161630, 166248, 184720, 193956, 207810, 226282, 242445, 258608, 277080, 290934, 323260, 332496, 339423, 387912, 415620, 452564, 484890, 554160, 565705, 581868, 646520, 678846, 727335, 775824, 831240, 905128, 969780, 1018269, 1131410, 1163736, 1293040, 1357692, 1454670, 1662480, 1697115, 1810256, 1939560, 2036538, 2262820, 2327472, 2715384, 2909340, 3394230, 3879120, 4073076, 4525640, 5091345, 5430768, 5818680, 6788460, 8146152, 9051280, 10182690, 11637360, 13576920, 16292304, 20365380, 27153840, 40730760, 81461520]

約数ペア:

[(1, 81461520), (2, 40730760), (3, 27153840), (4, 20365380), (5, 16292304), (6, 13576920), (7, 11637360), (8, 10182690), (9, 9051280), (10, 8146152), (12, 6788460), (14, 5818680), (15, 5430768), (16, 5091345), (18, 4525640), (20, 4073076), (21, 3879120), (24, 3394230), (28, 2909340), (30, 2715384), (35, 2327472), (36, 2262820), (40, 2036538), (42, 1939560), (45, 1810256), (48, 1697115), (49, 1662480), (56, 1454670), (60, 1357692), (63, 1293040), (70, 1163736), (72, 1131410), (80, 1018269), (84, 969780), (90, 905128), (98, 831240), (105, 775824), (112, 727335), (120, 678846), (126, 646520), (140, 581868), (144, 565705), (147, 554160), (168, 484890), (180, 452564), (196, 415620), (210, 387912), (240, 339423), (245, 332496), (252, 323260), (280, 290934), (294, 277080), (315, 258608), (336, 242445), (360, 226282), (392, 207810), (420, 193956), (441, 184720), (490, 166248), (504, 161630), (560, 145467), (588, 138540), (630, 129304), (720, 113141), (735, 110832), (784, 103905), (840, 96978), (882, 92360), (980, 83124), (1008, 80815), (1176, 69270), (1260, 64652), (1470, 55416), (1680, 48489), (1764, 46180), (1960, 41562), (2205, 36944), (2309, 35280), (2352, 34635), (2520, 32326), (2940, 27708), (3528, 23090), (3920, 20781), (4410, 18472), (4618, 17640), (5040, 16163), (5880, 13854), (6927, 11760), (7056, 11545), (8820, 9236)]