205120181

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 263036160

約数和(自身を除く): 57915979

約数列:

[1, 7, 17, 19, 119, 133, 257, 323, 353, 1799, 2261, 2471, 4369, 4883, 6001, 6707, 30583, 34181, 42007, 46949, 83011, 90721, 114019, 581077, 635047, 798133, 1542257, 1723699, 10795799, 12065893, 29302883, 205120181]

約数ペア:

[(1, 205120181), (7, 29302883), (17, 12065893), (19, 10795799), (119, 1723699), (133, 1542257), (257, 798133), (323, 635047), (353, 581077), (1799, 114019), (2261, 90721), (2471, 83011), (4369, 46949), (4883, 42007), (6001, 34181), (6707, 30583)]