28138880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:608

約数の個数: 128

約数和(自身を含む): 84015360

約数和(自身を除く): 55876480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 571, 616, 640, 704, 770, 880, 896, 1120, 1142, 1232, 1408, 1540, 1760, 2240, 2284, 2464, 2855, 3080, 3520, 3997, 4480, 4568, 4928, 5710, 6160, 6281, 7040, 7994, 9136, 9856, 11420, 12320, 12562, 15988, 18272, 19985, 22840, 24640, 25124, 31405, 31976, 36544, 39970, 43967, 45680, 49280, 50248, 62810, 63952, 73088, 79940, 87934, 91360, 100496, 125620, 127904, 159880, 175868, 182720, 200992, 219835, 251240, 255808, 319760, 351736, 365440, 401984, 439670, 502480, 511616, 639520, 703472, 803968, 879340, 1004960, 1279040, 1406944, 1758680, 2009920, 2558080, 2813888, 3517360, 4019840, 5627776, 7034720, 14069440, 28138880]

約数ペア:

[(1, 28138880), (2, 14069440), (4, 7034720), (5, 5627776), (7, 4019840), (8, 3517360), (10, 2813888), (11, 2558080), (14, 2009920), (16, 1758680), (20, 1406944), (22, 1279040), (28, 1004960), (32, 879340), (35, 803968), (40, 703472), (44, 639520), (55, 511616), (56, 502480), (64, 439670), (70, 401984), (77, 365440), (80, 351736), (88, 319760), (110, 255808), (112, 251240), (128, 219835), (140, 200992), (154, 182720), (160, 175868), (176, 159880), (220, 127904), (224, 125620), (280, 100496), (308, 91360), (320, 87934), (352, 79940), (385, 73088), (440, 63952), (448, 62810), (560, 50248), (571, 49280), (616, 45680), (640, 43967), (704, 39970), (770, 36544), (880, 31976), (896, 31405), (1120, 25124), (1142, 24640), (1232, 22840), (1408, 19985), (1540, 18272), (1760, 15988), (2240, 12562), (2284, 12320), (2464, 11420), (2855, 9856), (3080, 9136), (3520, 7994), (3997, 7040), (4480, 6281), (4568, 6160), (4928, 5710)]