28064880

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 200

約数和(自身を含む): 100466784

約数和(自身を除く): 72401904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 71, 72, 80, 81, 90, 108, 120, 122, 135, 142, 144, 162, 180, 183, 213, 216, 240, 244, 270, 284, 305, 324, 355, 360, 366, 405, 426, 432, 488, 540, 549, 568, 610, 639, 648, 710, 720, 732, 810, 852, 915, 976, 1065, 1080, 1098, 1136, 1220, 1278, 1296, 1420, 1464, 1620, 1647, 1704, 1830, 1917, 2130, 2160, 2196, 2440, 2556, 2745, 2840, 2928, 3195, 3240, 3294, 3408, 3660, 3834, 4260, 4331, 4392, 4880, 4941, 5112, 5490, 5680, 5751, 6390, 6480, 6588, 7320, 7668, 8235, 8520, 8662, 8784, 9585, 9882, 10224, 10980, 11502, 12780, 12993, 13176, 14640, 15336, 16470, 17040, 17324, 19170, 19764, 21655, 21960, 23004, 24705, 25560, 25986, 26352, 28755, 30672, 32940, 34648, 38340, 38979, 39528, 43310, 43920, 46008, 49410, 51120, 51972, 57510, 64965, 65880, 69296, 76680, 77958, 79056, 86620, 92016, 98820, 103944, 115020, 116937, 129930, 131760, 153360, 155916, 173240, 194895, 197640, 207888, 230040, 233874, 259860, 311832, 346480, 350811, 389790, 395280, 460080, 467748, 519720, 584685, 623664, 701622, 779580, 935496, 1039440, 1169370, 1403244, 1559160, 1754055, 1870992, 2338740, 2806488, 3118320, 3508110, 4677480, 5612976, 7016220, 9354960, 14032440, 28064880]

約数ペア:

[(1, 28064880), (2, 14032440), (3, 9354960), (4, 7016220), (5, 5612976), (6, 4677480), (8, 3508110), (9, 3118320), (10, 2806488), (12, 2338740), (15, 1870992), (16, 1754055), (18, 1559160), (20, 1403244), (24, 1169370), (27, 1039440), (30, 935496), (36, 779580), (40, 701622), (45, 623664), (48, 584685), (54, 519720), (60, 467748), (61, 460080), (71, 395280), (72, 389790), (80, 350811), (81, 346480), (90, 311832), (108, 259860), (120, 233874), (122, 230040), (135, 207888), (142, 197640), (144, 194895), (162, 173240), (180, 155916), (183, 153360), (213, 131760), (216, 129930), (240, 116937), (244, 115020), (270, 103944), (284, 98820), (305, 92016), (324, 86620), (355, 79056), (360, 77958), (366, 76680), (405, 69296), (426, 65880), (432, 64965), (488, 57510), (540, 51972), (549, 51120), (568, 49410), (610, 46008), (639, 43920), (648, 43310), (710, 39528), (720, 38979), (732, 38340), (810, 34648), (852, 32940), (915, 30672), (976, 28755), (1065, 26352), (1080, 25986), (1098, 25560), (1136, 24705), (1220, 23004), (1278, 21960), (1296, 21655), (1420, 19764), (1464, 19170), (1620, 17324), (1647, 17040), (1704, 16470), (1830, 15336), (1917, 14640), (2130, 13176), (2160, 12993), (2196, 12780), (2440, 11502), (2556, 10980), (2745, 10224), (2840, 9882), (2928, 9585), (3195, 8784), (3240, 8662), (3294, 8520), (3408, 8235), (3660, 7668), (3834, 7320), (4260, 6588), (4331, 6480), (4392, 6390), (4880, 5751), (4941, 5680), (5112, 5490)]