131451740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{22901}}^1$

素因数の和:22958

約数の個数: 48

約数和(自身を含む): 323193024

約数和(自身を除く): 191741284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 22901, 45802, 91604, 114505, 160307, 229010, 320614, 458020, 641228, 801535, 938941, 1603070, 1877882, 3206140, 3755764, 4694705, 6572587, 9389410, 13145174, 18778820, 26290348, 32862935, 65725870, 131451740]

約数ペア:

[(1, 131451740), (2, 65725870), (4, 32862935), (5, 26290348), (7, 18778820), (10, 13145174), (14, 9389410), (20, 6572587), (28, 4694705), (35, 3755764), (41, 3206140), (70, 1877882), (82, 1603070), (140, 938941), (164, 801535), (205, 641228), (287, 458020), (410, 320614), (574, 229010), (820, 160307), (1148, 114505), (1435, 91604), (2870, 45802), (5740, 22901)]