18709920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 192

約数和(自身を含む): 67495680

約数和(自身を除く): 48785760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 61, 71, 72, 80, 90, 96, 108, 120, 122, 135, 142, 144, 160, 180, 183, 213, 216, 240, 244, 270, 284, 288, 305, 355, 360, 366, 426, 432, 480, 488, 540, 549, 568, 610, 639, 710, 720, 732, 852, 864, 915, 976, 1065, 1080, 1098, 1136, 1220, 1278, 1420, 1440, 1464, 1647, 1704, 1830, 1917, 1952, 2130, 2160, 2196, 2272, 2440, 2556, 2745, 2840, 2928, 3195, 3294, 3408, 3660, 3834, 4260, 4320, 4331, 4392, 4880, 5112, 5490, 5680, 5856, 6390, 6588, 6816, 7320, 7668, 8235, 8520, 8662, 8784, 9585, 9760, 10224, 10980, 11360, 12780, 12993, 13176, 14640, 15336, 16470, 17040, 17324, 17568, 19170, 20448, 21655, 21960, 25560, 25986, 26352, 29280, 30672, 32940, 34080, 34648, 38340, 38979, 43310, 43920, 51120, 51972, 52704, 61344, 64965, 65880, 69296, 76680, 77958, 86620, 87840, 102240, 103944, 116937, 129930, 131760, 138592, 153360, 155916, 173240, 194895, 207888, 233874, 259860, 263520, 306720, 311832, 346480, 389790, 415776, 467748, 519720, 584685, 623664, 692960, 779580, 935496, 1039440, 1169370, 1247328, 1559160, 1870992, 2078880, 2338740, 3118320, 3741984, 4677480, 6236640, 9354960, 18709920]

約数ペア:

[(1, 18709920), (2, 9354960), (3, 6236640), (4, 4677480), (5, 3741984), (6, 3118320), (8, 2338740), (9, 2078880), (10, 1870992), (12, 1559160), (15, 1247328), (16, 1169370), (18, 1039440), (20, 935496), (24, 779580), (27, 692960), (30, 623664), (32, 584685), (36, 519720), (40, 467748), (45, 415776), (48, 389790), (54, 346480), (60, 311832), (61, 306720), (71, 263520), (72, 259860), (80, 233874), (90, 207888), (96, 194895), (108, 173240), (120, 155916), (122, 153360), (135, 138592), (142, 131760), (144, 129930), (160, 116937), (180, 103944), (183, 102240), (213, 87840), (216, 86620), (240, 77958), (244, 76680), (270, 69296), (284, 65880), (288, 64965), (305, 61344), (355, 52704), (360, 51972), (366, 51120), (426, 43920), (432, 43310), (480, 38979), (488, 38340), (540, 34648), (549, 34080), (568, 32940), (610, 30672), (639, 29280), (710, 26352), (720, 25986), (732, 25560), (852, 21960), (864, 21655), (915, 20448), (976, 19170), (1065, 17568), (1080, 17324), (1098, 17040), (1136, 16470), (1220, 15336), (1278, 14640), (1420, 13176), (1440, 12993), (1464, 12780), (1647, 11360), (1704, 10980), (1830, 10224), (1917, 9760), (1952, 9585), (2130, 8784), (2160, 8662), (2196, 8520), (2272, 8235), (2440, 7668), (2556, 7320), (2745, 6816), (2840, 6588), (2928, 6390), (3195, 5856), (3294, 5680), (3408, 5490), (3660, 5112), (3834, 4880), (4260, 4392), (4320, 4331)]