1280664

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{11}}^2$

素因数の和:51

約数の個数: 144

約数和(自身を含む): 4548600

約数和(自身を除く): 3267936

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 49, 54, 56, 63, 66, 72, 77, 84, 88, 98, 99, 108, 121, 126, 132, 147, 154, 168, 189, 196, 198, 216, 231, 242, 252, 264, 294, 297, 308, 363, 378, 392, 396, 441, 462, 484, 504, 539, 588, 594, 616, 693, 726, 756, 792, 847, 882, 924, 968, 1078, 1089, 1176, 1188, 1323, 1386, 1452, 1512, 1617, 1694, 1764, 1848, 2079, 2156, 2178, 2376, 2541, 2646, 2772, 2904, 3234, 3267, 3388, 3528, 4158, 4312, 4356, 4851, 5082, 5292, 5544, 5929, 6468, 6534, 6776, 7623, 8316, 8712, 9702, 10164, 10584, 11858, 12936, 13068, 14553, 15246, 16632, 17787, 19404, 20328, 22869, 23716, 26136, 29106, 30492, 35574, 38808, 45738, 47432, 53361, 58212, 60984, 71148, 91476, 106722, 116424, 142296, 160083, 182952, 213444, 320166, 426888, 640332, 1280664]

約数ペア:

[(1, 1280664), (2, 640332), (3, 426888), (4, 320166), (6, 213444), (7, 182952), (8, 160083), (9, 142296), (11, 116424), (12, 106722), (14, 91476), (18, 71148), (21, 60984), (22, 58212), (24, 53361), (27, 47432), (28, 45738), (33, 38808), (36, 35574), (42, 30492), (44, 29106), (49, 26136), (54, 23716), (56, 22869), (63, 20328), (66, 19404), (72, 17787), (77, 16632), (84, 15246), (88, 14553), (98, 13068), (99, 12936), (108, 11858), (121, 10584), (126, 10164), (132, 9702), (147, 8712), (154, 8316), (168, 7623), (189, 6776), (196, 6534), (198, 6468), (216, 5929), (231, 5544), (242, 5292), (252, 5082), (264, 4851), (294, 4356), (297, 4312), (308, 4158), (363, 3528), (378, 3388), (392, 3267), (396, 3234), (441, 2904), (462, 2772), (484, 2646), (504, 2541), (539, 2376), (588, 2178), (594, 2156), (616, 2079), (693, 1848), (726, 1764), (756, 1694), (792, 1617), (847, 1512), (882, 1452), (924, 1386), (968, 1323), (1078, 1188), (1089, 1176)]