4080888040

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{159161}}^1$

素因数の和:159813

約数の個数: 32

約数和(自身を含む): 9196380360

約数和(自身を除く): 5115492320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 159161, 318322, 636644, 795805, 1273288, 1591610, 3183220, 6366440, 102022201, 204044402, 408088804, 510111005, 816177608, 1020222010, 2040444020, 4080888040]

約数ペア:

[(1, 4080888040), (2, 2040444020), (4, 1020222010), (5, 816177608), (8, 510111005), (10, 408088804), (20, 204044402), (40, 102022201), (641, 6366440), (1282, 3183220), (2564, 1591610), (3205, 1273288), (5128, 795805), (6410, 636644), (12820, 318322), (25640, 159161)]