7974040

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{641}}^1$

素因数の和:963

約数の個数: 32

約数和(自身を含む): 18027360

約数和(自身を除く): 10053320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 641, 1244, 1282, 1555, 2488, 2564, 3110, 3205, 5128, 6220, 6410, 12440, 12820, 25640, 199351, 398702, 797404, 996755, 1594808, 1993510, 3987020, 7974040]

約数ペア:

[(1, 7974040), (2, 3987020), (4, 1993510), (5, 1594808), (8, 996755), (10, 797404), (20, 398702), (40, 199351), (311, 25640), (622, 12820), (641, 12440), (1244, 6410), (1282, 6220), (1555, 5128), (2488, 3205), (2564, 3110)]