42740005

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{15859}}^1$

素因数の和:15889

約数の個数: 24

約数和(自身を含む): 65089440

約数和(自身を除く): 22349435

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 15859, 79295, 111013, 174449, 555065, 777091, 872245, 1221143, 3885455, 6105715, 8548001, 42740005]

約数ペア:

[(1, 42740005), (5, 8548001), (7, 6105715), (11, 3885455), (35, 1221143), (49, 872245), (55, 777091), (77, 555065), (245, 174449), (385, 111013), (539, 79295), (2695, 15859)]