257997152

素因数分解:

$2^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{4447}}^1$

素因数の和:4508

約数の個数: 72

約数和(自身を含む): 606965184

約数和(自身を除く): 348968032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 392, 518, 592, 784, 1036, 1184, 1568, 1813, 2072, 3626, 4144, 4447, 7252, 8288, 8894, 14504, 17788, 29008, 31129, 35576, 58016, 62258, 71152, 124516, 142304, 164539, 217903, 249032, 329078, 435806, 498064, 658156, 871612, 996128, 1151773, 1316312, 1743224, 2303546, 2632624, 3486448, 4607092, 5265248, 6972896, 8062411, 9214184, 16124822, 18428368, 32249644, 36856736, 64499288, 128998576, 257997152]

約数ペア:

[(1, 257997152), (2, 128998576), (4, 64499288), (7, 36856736), (8, 32249644), (14, 18428368), (16, 16124822), (28, 9214184), (32, 8062411), (37, 6972896), (49, 5265248), (56, 4607092), (74, 3486448), (98, 2632624), (112, 2303546), (148, 1743224), (196, 1316312), (224, 1151773), (259, 996128), (296, 871612), (392, 658156), (518, 498064), (592, 435806), (784, 329078), (1036, 249032), (1184, 217903), (1568, 164539), (1813, 142304), (2072, 124516), (3626, 71152), (4144, 62258), (4447, 58016), (7252, 35576), (8288, 31129), (8894, 29008), (14504, 17788)]