1256557540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1259}}^1\times {\mathrm{7129}}^1$

素因数の和:8404

約数の個数: 48

約数和(自身を含む): 3018556800

約数和(自身を除く): 1761999260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1259, 2518, 5036, 6295, 7129, 8813, 12590, 14258, 17626, 25180, 28516, 35252, 35645, 44065, 49903, 71290, 88130, 99806, 142580, 176260, 199612, 249515, 499030, 998060, 8975411, 17950822, 35901644, 44877055, 62827877, 89754110, 125655754, 179508220, 251311508, 314139385, 628278770, 1256557540]

約数ペア:

[(1, 1256557540), (2, 628278770), (4, 314139385), (5, 251311508), (7, 179508220), (10, 125655754), (14, 89754110), (20, 62827877), (28, 44877055), (35, 35901644), (70, 17950822), (140, 8975411), (1259, 998060), (2518, 499030), (5036, 249515), (6295, 199612), (7129, 176260), (8813, 142580), (12590, 99806), (14258, 88130), (17626, 71290), (25180, 49903), (28516, 44065), (35252, 35645)]