1984420

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 4193784

約数和(自身を除く): 2209364

約数列:

[1, 2, 4, 5, 10, 20, 313, 317, 626, 634, 1252, 1268, 1565, 1585, 3130, 3170, 6260, 6340, 99221, 198442, 396884, 496105, 992210, 1984420]

約数ペア:

[(1, 1984420), (2, 992210), (4, 496105), (5, 396884), (10, 198442), (20, 99221), (313, 6340), (317, 6260), (626, 3170), (634, 3130), (1252, 1585), (1268, 1565)]