856553584

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{385141}}^1$

素因数の和:385288

約数の個数: 20

約数和(自身を含む): 1671516280

約数和(自身を除く): 814962696

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 385141, 770282, 1540564, 3081128, 6162256, 53534599, 107069198, 214138396, 428276792, 856553584]

約数ペア:

[(1, 856553584), (2, 428276792), (4, 214138396), (8, 107069198), (16, 53534599), (139, 6162256), (278, 3081128), (556, 1540564), (1112, 770282), (2224, 385141)]