28871920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 160

約数和(自身を含む): 86423040

約数和(自身を除く): 57551120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 43, 44, 55, 56, 70, 77, 80, 86, 88, 109, 110, 112, 140, 154, 172, 176, 215, 218, 220, 280, 301, 308, 344, 385, 430, 436, 440, 473, 545, 560, 602, 616, 688, 763, 770, 860, 872, 880, 946, 1090, 1199, 1204, 1232, 1505, 1526, 1540, 1720, 1744, 1892, 2180, 2365, 2398, 2408, 3010, 3052, 3080, 3311, 3440, 3784, 3815, 4360, 4687, 4730, 4796, 4816, 5995, 6020, 6104, 6160, 6622, 7568, 7630, 8393, 8720, 9374, 9460, 9592, 11990, 12040, 12208, 13244, 15260, 16555, 16786, 18748, 18920, 19184, 23435, 23980, 24080, 26488, 30520, 32809, 33110, 33572, 37496, 37840, 41965, 46870, 47960, 51557, 52976, 61040, 65618, 66220, 67144, 74992, 83930, 93740, 95920, 103114, 131236, 132440, 134288, 164045, 167860, 187480, 206228, 257785, 262472, 264880, 328090, 335720, 360899, 374960, 412456, 515570, 524944, 656180, 671440, 721798, 824912, 1031140, 1312360, 1443596, 1804495, 2062280, 2624720, 2887192, 3608990, 4124560, 5774384, 7217980, 14435960, 28871920]

約数ペア:

[(1, 28871920), (2, 14435960), (4, 7217980), (5, 5774384), (7, 4124560), (8, 3608990), (10, 2887192), (11, 2624720), (14, 2062280), (16, 1804495), (20, 1443596), (22, 1312360), (28, 1031140), (35, 824912), (40, 721798), (43, 671440), (44, 656180), (55, 524944), (56, 515570), (70, 412456), (77, 374960), (80, 360899), (86, 335720), (88, 328090), (109, 264880), (110, 262472), (112, 257785), (140, 206228), (154, 187480), (172, 167860), (176, 164045), (215, 134288), (218, 132440), (220, 131236), (280, 103114), (301, 95920), (308, 93740), (344, 83930), (385, 74992), (430, 67144), (436, 66220), (440, 65618), (473, 61040), (545, 52976), (560, 51557), (602, 47960), (616, 46870), (688, 41965), (763, 37840), (770, 37496), (860, 33572), (872, 33110), (880, 32809), (946, 30520), (1090, 26488), (1199, 24080), (1204, 23980), (1232, 23435), (1505, 19184), (1526, 18920), (1540, 18748), (1720, 16786), (1744, 16555), (1892, 15260), (2180, 13244), (2365, 12208), (2398, 12040), (2408, 11990), (3010, 9592), (3052, 9460), (3080, 9374), (3311, 8720), (3440, 8393), (3784, 7630), (3815, 7568), (4360, 6622), (4687, 6160), (4730, 6104), (4796, 6020), (4816, 5995)]