257560128

素因数分解:

$2^6\times 3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:334

約数の個数: 224

約数和(自身を含む): 877824000

約数和(自身を除く): 620263872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 107, 108, 112, 126, 144, 168, 189, 192, 199, 214, 216, 224, 252, 288, 321, 336, 378, 398, 428, 432, 448, 504, 576, 597, 642, 672, 749, 756, 796, 856, 864, 963, 1008, 1194, 1284, 1344, 1393, 1498, 1512, 1592, 1712, 1728, 1791, 1926, 2016, 2247, 2388, 2568, 2786, 2889, 2996, 3024, 3184, 3424, 3582, 3852, 4032, 4179, 4494, 4776, 5136, 5373, 5572, 5778, 5992, 6048, 6368, 6741, 6848, 7164, 7704, 8358, 8988, 9552, 10272, 10746, 11144, 11556, 11984, 12096, 12537, 12736, 13482, 14328, 15408, 16716, 17976, 19104, 20223, 20544, 21293, 21492, 22288, 23112, 23968, 25074, 26964, 28656, 30816, 33432, 35952, 37611, 38208, 40446, 42586, 42984, 44576, 46224, 47936, 50148, 53928, 57312, 61632, 63879, 66864, 71904, 75222, 80892, 85172, 85968, 89152, 92448, 100296, 107856, 114624, 127758, 133728, 143808, 149051, 150444, 161784, 170344, 171936, 184896, 191637, 200592, 215712, 255516, 267456, 298102, 300888, 323568, 340688, 343872, 383274, 401184, 431424, 447153, 511032, 574911, 596204, 601776, 647136, 681376, 766548, 802368, 894306, 1022064, 1149822, 1192408, 1203552, 1294272, 1341459, 1362752, 1533096, 1788612, 2044128, 2299644, 2384816, 2407104, 2682918, 3066192, 3577224, 4024377, 4088256, 4599288, 4769632, 5365836, 6132384, 7154448, 8048754, 9198576, 9539264, 10731672, 12264768, 14308896, 16097508, 18397152, 21463344, 28617792, 32195016, 36794304, 42926688, 64390032, 85853376, 128780064, 257560128]

約数ペア:

[(1, 257560128), (2, 128780064), (3, 85853376), (4, 64390032), (6, 42926688), (7, 36794304), (8, 32195016), (9, 28617792), (12, 21463344), (14, 18397152), (16, 16097508), (18, 14308896), (21, 12264768), (24, 10731672), (27, 9539264), (28, 9198576), (32, 8048754), (36, 7154448), (42, 6132384), (48, 5365836), (54, 4769632), (56, 4599288), (63, 4088256), (64, 4024377), (72, 3577224), (84, 3066192), (96, 2682918), (107, 2407104), (108, 2384816), (112, 2299644), (126, 2044128), (144, 1788612), (168, 1533096), (189, 1362752), (192, 1341459), (199, 1294272), (214, 1203552), (216, 1192408), (224, 1149822), (252, 1022064), (288, 894306), (321, 802368), (336, 766548), (378, 681376), (398, 647136), (428, 601776), (432, 596204), (448, 574911), (504, 511032), (576, 447153), (597, 431424), (642, 401184), (672, 383274), (749, 343872), (756, 340688), (796, 323568), (856, 300888), (864, 298102), (963, 267456), (1008, 255516), (1194, 215712), (1284, 200592), (1344, 191637), (1393, 184896), (1498, 171936), (1512, 170344), (1592, 161784), (1712, 150444), (1728, 149051), (1791, 143808), (1926, 133728), (2016, 127758), (2247, 114624), (2388, 107856), (2568, 100296), (2786, 92448), (2889, 89152), (2996, 85968), (3024, 85172), (3184, 80892), (3424, 75222), (3582, 71904), (3852, 66864), (4032, 63879), (4179, 61632), (4494, 57312), (4776, 53928), (5136, 50148), (5373, 47936), (5572, 46224), (5778, 44576), (5992, 42984), (6048, 42586), (6368, 40446), (6741, 38208), (6848, 37611), (7164, 35952), (7704, 33432), (8358, 30816), (8988, 28656), (9552, 26964), (10272, 25074), (10746, 23968), (11144, 23112), (11556, 22288), (11984, 21492), (12096, 21293), (12537, 20544), (12736, 20223), (13482, 19104), (14328, 17976), (15408, 16716)]