2981405

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 4273632

約数和(自身を除く): 1292227

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 283, 301, 1415, 1505, 1981, 2107, 9905, 10535, 12169, 13867, 60845, 69335, 85183, 425915, 596281, 2981405]

約数ペア:

[(1, 2981405), (5, 596281), (7, 425915), (35, 85183), (43, 69335), (49, 60845), (215, 13867), (245, 12169), (283, 10535), (301, 9905), (1415, 2107), (1505, 1981)]