257790064

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{20369}}^1$

素因数の和:20497

約数の個数: 40

約数和(自身を含む): 575900640

約数和(自身を除く): 318110576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1808, 3164, 6328, 12656, 20369, 40738, 81476, 142583, 162952, 285166, 325904, 570332, 1140664, 2281328, 2301697, 4603394, 9206788, 16111879, 18413576, 32223758, 36827152, 64447516, 128895032, 257790064]

約数ペア:

[(1, 257790064), (2, 128895032), (4, 64447516), (7, 36827152), (8, 32223758), (14, 18413576), (16, 16111879), (28, 9206788), (56, 4603394), (112, 2301697), (113, 2281328), (226, 1140664), (452, 570332), (791, 325904), (904, 285166), (1582, 162952), (1808, 142583), (3164, 81476), (6328, 40738), (12656, 20369)]