257211904

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1083

約数の個数: 80

約数和(自身を含む): 563468400

約数和(自身を除く): 306256496

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 64, 68, 116, 128, 136, 232, 256, 272, 464, 493, 512, 544, 928, 986, 1019, 1088, 1856, 1972, 2038, 2176, 3712, 3944, 4076, 4352, 7424, 7888, 8152, 8704, 14848, 15776, 16304, 17323, 29551, 31552, 32608, 34646, 59102, 63104, 65216, 69292, 118204, 126208, 130432, 138584, 236408, 252416, 260864, 277168, 472816, 502367, 521728, 554336, 945632, 1004734, 1108672, 1891264, 2009468, 2217344, 3782528, 4018936, 4434688, 7565056, 8037872, 8869376, 15130112, 16075744, 32151488, 64302976, 128605952, 257211904]

約数ペア:

[(1, 257211904), (2, 128605952), (4, 64302976), (8, 32151488), (16, 16075744), (17, 15130112), (29, 8869376), (32, 8037872), (34, 7565056), (58, 4434688), (64, 4018936), (68, 3782528), (116, 2217344), (128, 2009468), (136, 1891264), (232, 1108672), (256, 1004734), (272, 945632), (464, 554336), (493, 521728), (512, 502367), (544, 472816), (928, 277168), (986, 260864), (1019, 252416), (1088, 236408), (1856, 138584), (1972, 130432), (2038, 126208), (2176, 118204), (3712, 69292), (3944, 65216), (4076, 63104), (4352, 59102), (7424, 34646), (7888, 32608), (8152, 31552), (8704, 29551), (14848, 17323), (15776, 16304)]