28864400

素因数分解:

$2^4\times 5^2\times {\mathrm{72161}}^1$

素因数の和:72179

約数の個数: 30

約数和(自身を含む): 69347682

約数和(自身を除く): 40483282

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72161, 144322, 288644, 360805, 577288, 721610, 1154576, 1443220, 1804025, 2886440, 3608050, 5772880, 7216100, 14432200, 28864400]

約数ペア:

[(1, 28864400), (2, 14432200), (4, 7216100), (5, 5772880), (8, 3608050), (10, 2886440), (16, 1804025), (20, 1443220), (25, 1154576), (40, 721610), (50, 577288), (80, 360805), (100, 288644), (200, 144322), (400, 72161)]