81866880

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:319

約数の個数: 192

約数和(自身を含む): 288564120

約数和(自身を除く): 206697240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 120, 122, 128, 144, 160, 180, 183, 192, 233, 240, 244, 288, 305, 320, 360, 366, 384, 466, 480, 488, 549, 576, 610, 640, 699, 720, 732, 915, 932, 960, 976, 1098, 1152, 1165, 1220, 1398, 1440, 1464, 1830, 1864, 1920, 1952, 2097, 2196, 2330, 2440, 2745, 2796, 2880, 2928, 3495, 3660, 3728, 3904, 4194, 4392, 4660, 4880, 5490, 5592, 5760, 5856, 6990, 7320, 7456, 7808, 8388, 8784, 9320, 9760, 10485, 10980, 11184, 11712, 13980, 14213, 14640, 14912, 16776, 17568, 18640, 19520, 20970, 21960, 22368, 23424, 27960, 28426, 29280, 29824, 33552, 35136, 37280, 39040, 41940, 42639, 43920, 44736, 55920, 56852, 58560, 67104, 70272, 71065, 74560, 83880, 85278, 87840, 89472, 111840, 113704, 117120, 127917, 134208, 142130, 149120, 167760, 170556, 175680, 213195, 223680, 227408, 255834, 268416, 284260, 335520, 341112, 351360, 426390, 447360, 454816, 511668, 568520, 639585, 671040, 682224, 852780, 909632, 1023336, 1137040, 1279170, 1342080, 1364448, 1705560, 1819264, 2046672, 2274080, 2558340, 2728896, 3411120, 4093344, 4548160, 5116680, 5457792, 6822240, 8186688, 9096320, 10233360, 13644480, 16373376, 20466720, 27288960, 40933440, 81866880]

約数ペア:

[(1, 81866880), (2, 40933440), (3, 27288960), (4, 20466720), (5, 16373376), (6, 13644480), (8, 10233360), (9, 9096320), (10, 8186688), (12, 6822240), (15, 5457792), (16, 5116680), (18, 4548160), (20, 4093344), (24, 3411120), (30, 2728896), (32, 2558340), (36, 2274080), (40, 2046672), (45, 1819264), (48, 1705560), (60, 1364448), (61, 1342080), (64, 1279170), (72, 1137040), (80, 1023336), (90, 909632), (96, 852780), (120, 682224), (122, 671040), (128, 639585), (144, 568520), (160, 511668), (180, 454816), (183, 447360), (192, 426390), (233, 351360), (240, 341112), (244, 335520), (288, 284260), (305, 268416), (320, 255834), (360, 227408), (366, 223680), (384, 213195), (466, 175680), (480, 170556), (488, 167760), (549, 149120), (576, 142130), (610, 134208), (640, 127917), (699, 117120), (720, 113704), (732, 111840), (915, 89472), (932, 87840), (960, 85278), (976, 83880), (1098, 74560), (1152, 71065), (1165, 70272), (1220, 67104), (1398, 58560), (1440, 56852), (1464, 55920), (1830, 44736), (1864, 43920), (1920, 42639), (1952, 41940), (2097, 39040), (2196, 37280), (2330, 35136), (2440, 33552), (2745, 29824), (2796, 29280), (2880, 28426), (2928, 27960), (3495, 23424), (3660, 22368), (3728, 21960), (3904, 20970), (4194, 19520), (4392, 18640), (4660, 17568), (4880, 16776), (5490, 14912), (5592, 14640), (5760, 14213), (5856, 13980), (6990, 11712), (7320, 11184), (7456, 10980), (7808, 10485), (8388, 9760), (8784, 9320)]