20123984512

素因数分解:

$2^7\times {\mathrm{389}}^1\times {\mathrm{404161}}^1$

素因数の和:404564

約数の個数: 32

約数和(自身を含む): 40193910900

約数和(自身を除く): 20069926388

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 389, 778, 1556, 3112, 6224, 12448, 24896, 49792, 404161, 808322, 1616644, 3233288, 6466576, 12933152, 25866304, 51732608, 157218629, 314437258, 628874516, 1257749032, 2515498064, 5030996128, 10061992256, 20123984512]

約数ペア:

[(1, 20123984512), (2, 10061992256), (4, 5030996128), (8, 2515498064), (16, 1257749032), (32, 628874516), (64, 314437258), (128, 157218629), (389, 51732608), (778, 25866304), (1556, 12933152), (3112, 6466576), (6224, 3233288), (12448, 1616644), (24896, 808322), (49792, 404161)]