212552020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{21557}}^1$

素因数の和:21612

約数の個数: 48

約数和(自身を含む): 488935440

約数和(自身を除く): 276383420

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 21557, 43114, 86228, 107785, 215570, 366469, 431140, 625153, 732938, 1250306, 1465876, 1832345, 2500612, 3125765, 3664690, 6251530, 7329380, 10627601, 12503060, 21255202, 42510404, 53138005, 106276010, 212552020]

約数ペア:

[(1, 212552020), (2, 106276010), (4, 53138005), (5, 42510404), (10, 21255202), (17, 12503060), (20, 10627601), (29, 7329380), (34, 6251530), (58, 3664690), (68, 3125765), (85, 2500612), (116, 1832345), (145, 1465876), (170, 1250306), (290, 732938), (340, 625153), (493, 431140), (580, 366469), (986, 215570), (1972, 107785), (2465, 86228), (4930, 43114), (9860, 21557)]