1809280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 4736880

約数和(自身を除く): 2927600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 257, 320, 352, 440, 514, 640, 704, 880, 1028, 1285, 1408, 1760, 2056, 2570, 2827, 3520, 4112, 5140, 5654, 7040, 8224, 10280, 11308, 14135, 16448, 20560, 22616, 28270, 32896, 41120, 45232, 56540, 82240, 90464, 113080, 164480, 180928, 226160, 361856, 452320, 904640, 1809280]

約数ペア:

[(1, 1809280), (2, 904640), (4, 452320), (5, 361856), (8, 226160), (10, 180928), (11, 164480), (16, 113080), (20, 90464), (22, 82240), (32, 56540), (40, 45232), (44, 41120), (55, 32896), (64, 28270), (80, 22616), (88, 20560), (110, 16448), (128, 14135), (160, 11308), (176, 10280), (220, 8224), (257, 7040), (320, 5654), (352, 5140), (440, 4112), (514, 3520), (640, 2827), (704, 2570), (880, 2056), (1028, 1760), (1285, 1408)]