19788895

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 28871640

約数和(自身を除く): 9082745

約数列:

[1, 5, 7, 35, 37, 49, 59, 185, 245, 259, 295, 413, 1295, 1369, 1813, 2065, 2183, 2891, 6845, 9065, 9583, 10915, 14455, 15281, 47915, 67081, 76405, 80771, 106967, 335405, 403855, 534835, 565397, 2826985, 3957779, 19788895]

約数ペア:

[(1, 19788895), (5, 3957779), (7, 2826985), (35, 565397), (37, 534835), (49, 403855), (59, 335405), (185, 106967), (245, 80771), (259, 76405), (295, 67081), (413, 47915), (1295, 15281), (1369, 14455), (1813, 10915), (2065, 9583), (2183, 9065), (2891, 6845)]