28545120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:525

約数の個数: 144

約数和(自身を含む): 99891792

約数和(自身を除く): 71346672

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 360, 387, 430, 461, 480, 516, 645, 688, 720, 774, 860, 922, 1032, 1290, 1376, 1383, 1440, 1548, 1720, 1844, 1935, 2064, 2305, 2580, 2766, 3096, 3440, 3688, 3870, 4128, 4149, 4610, 5160, 5532, 6192, 6880, 6915, 7376, 7740, 8298, 9220, 10320, 11064, 12384, 13830, 14752, 15480, 16596, 18440, 19823, 20640, 20745, 22128, 27660, 30960, 33192, 36880, 39646, 41490, 44256, 55320, 59469, 61920, 66384, 73760, 79292, 82980, 99115, 110640, 118938, 132768, 158584, 165960, 178407, 198230, 221280, 237876, 297345, 317168, 331920, 356814, 396460, 475752, 594690, 634336, 663840, 713628, 792920, 892035, 951504, 1189380, 1427256, 1585840, 1784070, 1903008, 2378760, 2854512, 3171680, 3568140, 4757520, 5709024, 7136280, 9515040, 14272560, 28545120]

約数ペア:

[(1, 28545120), (2, 14272560), (3, 9515040), (4, 7136280), (5, 5709024), (6, 4757520), (8, 3568140), (9, 3171680), (10, 2854512), (12, 2378760), (15, 1903008), (16, 1784070), (18, 1585840), (20, 1427256), (24, 1189380), (30, 951504), (32, 892035), (36, 792920), (40, 713628), (43, 663840), (45, 634336), (48, 594690), (60, 475752), (72, 396460), (80, 356814), (86, 331920), (90, 317168), (96, 297345), (120, 237876), (129, 221280), (144, 198230), (160, 178407), (172, 165960), (180, 158584), (215, 132768), (240, 118938), (258, 110640), (288, 99115), (344, 82980), (360, 79292), (387, 73760), (430, 66384), (461, 61920), (480, 59469), (516, 55320), (645, 44256), (688, 41490), (720, 39646), (774, 36880), (860, 33192), (922, 30960), (1032, 27660), (1290, 22128), (1376, 20745), (1383, 20640), (1440, 19823), (1548, 18440), (1720, 16596), (1844, 15480), (1935, 14752), (2064, 13830), (2305, 12384), (2580, 11064), (2766, 10320), (3096, 9220), (3440, 8298), (3688, 7740), (3870, 7376), (4128, 6915), (4149, 6880), (4610, 6192), (5160, 5532)]