857100820

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{247717}}^1$

素因数の和:247899

約数の個数: 24

約数和(自身を含む): 1810323144

約数和(自身を除く): 953222324

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 247717, 495434, 990868, 1238585, 2477170, 4954340, 42855041, 85710082, 171420164, 214275205, 428550410, 857100820]

約数ペア:

[(1, 857100820), (2, 428550410), (4, 214275205), (5, 171420164), (10, 85710082), (20, 42855041), (173, 4954340), (346, 2477170), (692, 1238585), (865, 990868), (1730, 495434), (3460, 247717)]