20256550384

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1320161}}^1$

素因数の和:1320313

約数の個数: 40

約数和(自身を含む): 45181224288

約数和(自身を除く): 24924673904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1918, 2192, 3836, 7672, 15344, 1320161, 2640322, 5280644, 9241127, 10561288, 18482254, 21122576, 36964508, 73929016, 147858032, 180862057, 361724114, 723448228, 1266034399, 1446896456, 2532068798, 2893792912, 5064137596, 10128275192, 20256550384]

約数ペア:

[(1, 20256550384), (2, 10128275192), (4, 5064137596), (7, 2893792912), (8, 2532068798), (14, 1446896456), (16, 1266034399), (28, 723448228), (56, 361724114), (112, 180862057), (137, 147858032), (274, 73929016), (548, 36964508), (959, 21122576), (1096, 18482254), (1918, 10561288), (2192, 9241127), (3836, 5280644), (7672, 2640322), (15344, 1320161)]