1640908048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{7888981}}^1$

素因数の和:7889002

約数の個数: 20

約数和(自身を含む): 3423818188

約数和(自身を除く): 1782910140

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 7888981, 15777962, 31555924, 63111848, 102556753, 126223696, 205113506, 410227012, 820454024, 1640908048]

約数ペア:

[(1, 1640908048), (2, 820454024), (4, 410227012), (8, 205113506), (13, 126223696), (16, 102556753), (26, 63111848), (52, 31555924), (104, 15777962), (208, 7888981)]