1380222004

素因数分解:

$2^2\times 7^2\times {\mathrm{7041949}}^1$

素因数の和:7041967

約数の個数: 18

約数和(自身を含む): 2809738050

約数和(自身を除く): 1429516046

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 7041949, 14083898, 28167796, 49293643, 98587286, 197174572, 345055501, 690111002, 1380222004]

約数ペア:

[(1, 1380222004), (2, 690111002), (4, 345055501), (7, 197174572), (14, 98587286), (28, 49293643), (49, 28167796), (98, 14083898), (196, 7041949)]