2051220220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{105407}}^1$

素因数の和:105562

約数の個数: 48

約数和(自身を含む): 4958392320

約数和(自身を除く): 2907172100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 105407, 210814, 421628, 527035, 737849, 1054070, 1475698, 2108140, 2951396, 3689245, 7378490, 14651573, 14756980, 29303146, 58606292, 73257865, 102561011, 146515730, 205122022, 293031460, 410244044, 512805055, 1025610110, 2051220220]

約数ペア:

[(1, 2051220220), (2, 1025610110), (4, 512805055), (5, 410244044), (7, 293031460), (10, 205122022), (14, 146515730), (20, 102561011), (28, 73257865), (35, 58606292), (70, 29303146), (139, 14756980), (140, 14651573), (278, 7378490), (556, 3689245), (695, 2951396), (973, 2108140), (1390, 1475698), (1946, 1054070), (2780, 737849), (3892, 527035), (4865, 421628), (9730, 210814), (19460, 105407)]