26481280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 75790080

約数和(自身を除く): 49308800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 257, 280, 320, 322, 368, 448, 460, 514, 560, 640, 644, 736, 805, 896, 920, 1028, 1120, 1285, 1288, 1472, 1610, 1799, 1840, 2056, 2240, 2570, 2576, 2944, 3220, 3598, 3680, 4112, 4480, 5140, 5152, 5911, 6440, 7196, 7360, 8224, 8995, 10280, 10304, 11822, 12880, 14392, 14720, 16448, 17990, 20560, 20608, 23644, 25760, 28784, 29555, 32896, 35980, 41120, 41377, 47288, 51520, 57568, 59110, 71960, 82240, 82754, 94576, 103040, 115136, 118220, 143920, 164480, 165508, 189152, 206885, 230272, 236440, 287840, 331016, 378304, 413770, 472880, 575680, 662032, 756608, 827540, 945760, 1151360, 1324064, 1655080, 1891520, 2648128, 3310160, 3783040, 5296256, 6620320, 13240640, 26481280]

約数ペア:

[(1, 26481280), (2, 13240640), (4, 6620320), (5, 5296256), (7, 3783040), (8, 3310160), (10, 2648128), (14, 1891520), (16, 1655080), (20, 1324064), (23, 1151360), (28, 945760), (32, 827540), (35, 756608), (40, 662032), (46, 575680), (56, 472880), (64, 413770), (70, 378304), (80, 331016), (92, 287840), (112, 236440), (115, 230272), (128, 206885), (140, 189152), (160, 165508), (161, 164480), (184, 143920), (224, 118220), (230, 115136), (257, 103040), (280, 94576), (320, 82754), (322, 82240), (368, 71960), (448, 59110), (460, 57568), (514, 51520), (560, 47288), (640, 41377), (644, 41120), (736, 35980), (805, 32896), (896, 29555), (920, 28784), (1028, 25760), (1120, 23644), (1285, 20608), (1288, 20560), (1472, 17990), (1610, 16448), (1799, 14720), (1840, 14392), (2056, 12880), (2240, 11822), (2570, 10304), (2576, 10280), (2944, 8995), (3220, 8224), (3598, 7360), (3680, 7196), (4112, 6440), (4480, 5911), (5140, 5152)]