28023840

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:536

約数の個数: 192

約数和(自身を含む): 105840000

約数和(自身を除く): 77816160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 351, 360, 390, 416, 432, 468, 480, 499, 520, 540, 585, 624, 702, 720, 780, 864, 936, 998, 1040, 1080, 1170, 1248, 1404, 1440, 1497, 1560, 1755, 1872, 1996, 2080, 2160, 2340, 2495, 2808, 2994, 3120, 3510, 3744, 3992, 4320, 4491, 4680, 4990, 5616, 5988, 6240, 6487, 7020, 7485, 7984, 8982, 9360, 9980, 11232, 11976, 12974, 13473, 14040, 14970, 15968, 17964, 18720, 19461, 19960, 22455, 23952, 25948, 26946, 28080, 29940, 32435, 35928, 38922, 39920, 44910, 47904, 51896, 53892, 56160, 58383, 59880, 64870, 67365, 71856, 77844, 79840, 89820, 97305, 103792, 107784, 116766, 119760, 129740, 134730, 143712, 155688, 175149, 179640, 194610, 207584, 215568, 233532, 239520, 259480, 269460, 291915, 311376, 350298, 359280, 389220, 431136, 467064, 518960, 538920, 583830, 622752, 700596, 718560, 778440, 875745, 934128, 1037920, 1077840, 1167660, 1401192, 1556880, 1751490, 1868256, 2155680, 2335320, 2802384, 3113760, 3502980, 4670640, 5604768, 7005960, 9341280, 14011920, 28023840]

約数ペア:

[(1, 28023840), (2, 14011920), (3, 9341280), (4, 7005960), (5, 5604768), (6, 4670640), (8, 3502980), (9, 3113760), (10, 2802384), (12, 2335320), (13, 2155680), (15, 1868256), (16, 1751490), (18, 1556880), (20, 1401192), (24, 1167660), (26, 1077840), (27, 1037920), (30, 934128), (32, 875745), (36, 778440), (39, 718560), (40, 700596), (45, 622752), (48, 583830), (52, 538920), (54, 518960), (60, 467064), (65, 431136), (72, 389220), (78, 359280), (80, 350298), (90, 311376), (96, 291915), (104, 269460), (108, 259480), (117, 239520), (120, 233532), (130, 215568), (135, 207584), (144, 194610), (156, 179640), (160, 175149), (180, 155688), (195, 143712), (208, 134730), (216, 129740), (234, 119760), (240, 116766), (260, 107784), (270, 103792), (288, 97305), (312, 89820), (351, 79840), (360, 77844), (390, 71856), (416, 67365), (432, 64870), (468, 59880), (480, 58383), (499, 56160), (520, 53892), (540, 51896), (585, 47904), (624, 44910), (702, 39920), (720, 38922), (780, 35928), (864, 32435), (936, 29940), (998, 28080), (1040, 26946), (1080, 25948), (1170, 23952), (1248, 22455), (1404, 19960), (1440, 19461), (1497, 18720), (1560, 17964), (1755, 15968), (1872, 14970), (1996, 14040), (2080, 13473), (2160, 12974), (2340, 11976), (2495, 11232), (2808, 9980), (2994, 9360), (3120, 8982), (3510, 7984), (3744, 7485), (3992, 7020), (4320, 6487), (4491, 6240), (4680, 5988), (4990, 5616)]