256374944

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^2\times {\mathrm{619}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 591524640

約数和(自身を除く): 335149696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 172, 224, 301, 344, 602, 619, 688, 1204, 1238, 1376, 1849, 2408, 2476, 3698, 4333, 4816, 4952, 7396, 8666, 9632, 9904, 12943, 14792, 17332, 19808, 25886, 26617, 29584, 34664, 51772, 53234, 59168, 69328, 103544, 106468, 138656, 186319, 207088, 212936, 372638, 414176, 425872, 745276, 851744, 1144531, 1490552, 2289062, 2981104, 4578124, 5962208, 8011717, 9156248, 16023434, 18312496, 32046868, 36624992, 64093736, 128187472, 256374944]

約数ペア:

[(1, 256374944), (2, 128187472), (4, 64093736), (7, 36624992), (8, 32046868), (14, 18312496), (16, 16023434), (28, 9156248), (32, 8011717), (43, 5962208), (56, 4578124), (86, 2981104), (112, 2289062), (172, 1490552), (224, 1144531), (301, 851744), (344, 745276), (602, 425872), (619, 414176), (688, 372638), (1204, 212936), (1238, 207088), (1376, 186319), (1849, 138656), (2408, 106468), (2476, 103544), (3698, 69328), (4333, 59168), (4816, 53234), (4952, 51772), (7396, 34664), (8666, 29584), (9632, 26617), (9904, 25886), (12943, 19808), (14792, 17332)]