81161640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:181

約数の個数: 288

約数和(自身を含む): 316910880

約数和(自身を除く): 235749240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 49, 56, 60, 63, 70, 72, 84, 86, 90, 98, 105, 107, 120, 126, 129, 140, 147, 168, 172, 180, 196, 210, 214, 215, 245, 252, 258, 280, 294, 301, 315, 321, 344, 360, 387, 392, 420, 428, 430, 441, 490, 504, 516, 535, 588, 602, 630, 642, 645, 735, 749, 774, 840, 856, 860, 882, 903, 963, 980, 1032, 1070, 1176, 1204, 1260, 1284, 1290, 1470, 1498, 1505, 1548, 1605, 1720, 1764, 1806, 1926, 1935, 1960, 2107, 2140, 2205, 2247, 2408, 2520, 2568, 2580, 2709, 2940, 2996, 3010, 3096, 3210, 3528, 3612, 3745, 3852, 3870, 4214, 4280, 4410, 4494, 4515, 4601, 4815, 5160, 5243, 5418, 5880, 5992, 6020, 6321, 6420, 6741, 7224, 7490, 7704, 7740, 8428, 8820, 8988, 9030, 9202, 9630, 10486, 10535, 10836, 11235, 12040, 12642, 12840, 13482, 13545, 13803, 14980, 15480, 15729, 16856, 17640, 17976, 18060, 18404, 18963, 19260, 20972, 21070, 21672, 22470, 23005, 25284, 26215, 26964, 27090, 27606, 29960, 31458, 31605, 32207, 33705, 36120, 36808, 37926, 38520, 41409, 41944, 42140, 44940, 46010, 47187, 50568, 52430, 53928, 54180, 55212, 62916, 63210, 64414, 67410, 69015, 75852, 78645, 82818, 84280, 89880, 92020, 94374, 94815, 96621, 104860, 108360, 110424, 125832, 126420, 128828, 134820, 138030, 151704, 157290, 161035, 165636, 184040, 188748, 189630, 193242, 207045, 209720, 225449, 235935, 252840, 257656, 269640, 276060, 289863, 314580, 322070, 331272, 377496, 379260, 386484, 414090, 450898, 471870, 483105, 552120, 579726, 629160, 644140, 676347, 758520, 772968, 828180, 901796, 943740, 966210, 1127245, 1159452, 1288280, 1352694, 1449315, 1656360, 1803592, 1887480, 1932420, 2029041, 2254490, 2318904, 2705388, 2898630, 3381735, 3864840, 4058082, 4508980, 5410776, 5797260, 6763470, 8116164, 9017960, 10145205, 11594520, 13526940, 16232328, 20290410, 27053880, 40580820, 81161640]

約数ペア:

[(1, 81161640), (2, 40580820), (3, 27053880), (4, 20290410), (5, 16232328), (6, 13526940), (7, 11594520), (8, 10145205), (9, 9017960), (10, 8116164), (12, 6763470), (14, 5797260), (15, 5410776), (18, 4508980), (20, 4058082), (21, 3864840), (24, 3381735), (28, 2898630), (30, 2705388), (35, 2318904), (36, 2254490), (40, 2029041), (42, 1932420), (43, 1887480), (45, 1803592), (49, 1656360), (56, 1449315), (60, 1352694), (63, 1288280), (70, 1159452), (72, 1127245), (84, 966210), (86, 943740), (90, 901796), (98, 828180), (105, 772968), (107, 758520), (120, 676347), (126, 644140), (129, 629160), (140, 579726), (147, 552120), (168, 483105), (172, 471870), (180, 450898), (196, 414090), (210, 386484), (214, 379260), (215, 377496), (245, 331272), (252, 322070), (258, 314580), (280, 289863), (294, 276060), (301, 269640), (315, 257656), (321, 252840), (344, 235935), (360, 225449), (387, 209720), (392, 207045), (420, 193242), (428, 189630), (430, 188748), (441, 184040), (490, 165636), (504, 161035), (516, 157290), (535, 151704), (588, 138030), (602, 134820), (630, 128828), (642, 126420), (645, 125832), (735, 110424), (749, 108360), (774, 104860), (840, 96621), (856, 94815), (860, 94374), (882, 92020), (903, 89880), (963, 84280), (980, 82818), (1032, 78645), (1070, 75852), (1176, 69015), (1204, 67410), (1260, 64414), (1284, 63210), (1290, 62916), (1470, 55212), (1498, 54180), (1505, 53928), (1548, 52430), (1605, 50568), (1720, 47187), (1764, 46010), (1806, 44940), (1926, 42140), (1935, 41944), (1960, 41409), (2107, 38520), (2140, 37926), (2205, 36808), (2247, 36120), (2408, 33705), (2520, 32207), (2568, 31605), (2580, 31458), (2709, 29960), (2940, 27606), (2996, 27090), (3010, 26964), (3096, 26215), (3210, 25284), (3528, 23005), (3612, 22470), (3745, 21672), (3852, 21070), (3870, 20972), (4214, 19260), (4280, 18963), (4410, 18404), (4494, 18060), (4515, 17976), (4601, 17640), (4815, 16856), (5160, 15729), (5243, 15480), (5418, 14980), (5880, 13803), (5992, 13545), (6020, 13482), (6321, 12840), (6420, 12642), (6741, 12040), (7224, 11235), (7490, 10836), (7704, 10535), (7740, 10486), (8428, 9630), (8820, 9202), (8988, 9030)]