2645889616

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{331399}}^1$

素因数の和:331906

約数の個数: 20

約数和(自身を含む): 5136700000

約数和(自身を除く): 2490810384

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 3992, 7984, 331399, 662798, 1325596, 2651192, 5302384, 165368101, 330736202, 661472404, 1322944808, 2645889616]

約数ペア:

[(1, 2645889616), (2, 1322944808), (4, 661472404), (8, 330736202), (16, 165368101), (499, 5302384), (998, 2651192), (1996, 1325596), (3992, 662798), (7984, 331399)]