2878690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 5544000

約数和(自身を除く): 2665310

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 139, 190, 218, 278, 545, 695, 1090, 1390, 2071, 2641, 4142, 5282, 10355, 13205, 15151, 20710, 26410, 30302, 75755, 151510, 287869, 575738, 1439345, 2878690]

約数ペア:

[(1, 2878690), (2, 1439345), (5, 575738), (10, 287869), (19, 151510), (38, 75755), (95, 30302), (109, 26410), (139, 20710), (190, 15151), (218, 13205), (278, 10355), (545, 5282), (695, 4142), (1090, 2641), (1390, 2071)]