290428985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{2137}}^1$

素因数の和:2513

約数の個数: 32

約数和(自身を含む): 435946752

約数和(自身を除く): 145517767

約数列:

[1, 5, 7, 11, 35, 55, 77, 353, 385, 1765, 2137, 2471, 3883, 10685, 12355, 14959, 19415, 23507, 27181, 74795, 117535, 135905, 164549, 754361, 822745, 3771805, 5280527, 8297971, 26402635, 41489855, 58085797, 290428985]

約数ペア:

[(1, 290428985), (5, 58085797), (7, 41489855), (11, 26402635), (35, 8297971), (55, 5280527), (77, 3771805), (353, 822745), (385, 754361), (1765, 164549), (2137, 135905), (2471, 117535), (3883, 74795), (10685, 27181), (12355, 23507), (14959, 19415)]