256715536

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1053

約数の個数: 120

約数和(自身を含む): 658360640

約数和(自身を除く): 401645104

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 121, 133, 152, 154, 176, 209, 242, 266, 304, 308, 418, 484, 532, 616, 836, 847, 968, 997, 1064, 1232, 1463, 1672, 1694, 1936, 1994, 2128, 2299, 2926, 3344, 3388, 3988, 4598, 5852, 6776, 6979, 7976, 9196, 10967, 11704, 13552, 13958, 15952, 16093, 18392, 18943, 21934, 23408, 27916, 32186, 36784, 37886, 43868, 55832, 64372, 75772, 76769, 87736, 111664, 120637, 128744, 132601, 151544, 153538, 175472, 208373, 241274, 257488, 265202, 303088, 307076, 416746, 482548, 530404, 614152, 833492, 844459, 965096, 1060808, 1228304, 1458611, 1666984, 1688918, 1930192, 2121616, 2292103, 2917222, 3333968, 3377836, 4584206, 5834444, 6755672, 9168412, 11668888, 13511344, 16044721, 18336824, 23337776, 32089442, 36673648, 64178884, 128357768, 256715536]

約数ペア:

[(1, 256715536), (2, 128357768), (4, 64178884), (7, 36673648), (8, 32089442), (11, 23337776), (14, 18336824), (16, 16044721), (19, 13511344), (22, 11668888), (28, 9168412), (38, 6755672), (44, 5834444), (56, 4584206), (76, 3377836), (77, 3333968), (88, 2917222), (112, 2292103), (121, 2121616), (133, 1930192), (152, 1688918), (154, 1666984), (176, 1458611), (209, 1228304), (242, 1060808), (266, 965096), (304, 844459), (308, 833492), (418, 614152), (484, 530404), (532, 482548), (616, 416746), (836, 307076), (847, 303088), (968, 265202), (997, 257488), (1064, 241274), (1232, 208373), (1463, 175472), (1672, 153538), (1694, 151544), (1936, 132601), (1994, 128744), (2128, 120637), (2299, 111664), (2926, 87736), (3344, 76769), (3388, 75772), (3988, 64372), (4598, 55832), (5852, 43868), (6776, 37886), (6979, 36784), (7976, 32186), (9196, 27916), (10967, 23408), (11704, 21934), (13552, 18943), (13958, 18392), (15952, 16093)]