257689376

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{18859}}^1$

素因数の和:18937

約数の個数: 48

約数和(自身を含む): 589337280

約数和(自身を除く): 331647904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1708, 1952, 3416, 6832, 13664, 18859, 37718, 75436, 132013, 150872, 264026, 301744, 528052, 603488, 1056104, 1150399, 2112208, 2300798, 4224416, 4601596, 8052793, 9203192, 16105586, 18406384, 32211172, 36812768, 64422344, 128844688, 257689376]

約数ペア:

[(1, 257689376), (2, 128844688), (4, 64422344), (7, 36812768), (8, 32211172), (14, 18406384), (16, 16105586), (28, 9203192), (32, 8052793), (56, 4601596), (61, 4224416), (112, 2300798), (122, 2112208), (224, 1150399), (244, 1056104), (427, 603488), (488, 528052), (854, 301744), (976, 264026), (1708, 150872), (1952, 132013), (3416, 75436), (6832, 37718), (13664, 18859)]