442040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 1021680

約数和(自身を除く): 579640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 257, 344, 430, 514, 860, 1028, 1285, 1720, 2056, 2570, 5140, 10280, 11051, 22102, 44204, 55255, 88408, 110510, 221020, 442040]

約数ペア:

[(1, 442040), (2, 221020), (4, 110510), (5, 88408), (8, 55255), (10, 44204), (20, 22102), (40, 11051), (43, 10280), (86, 5140), (172, 2570), (215, 2056), (257, 1720), (344, 1285), (430, 1028), (514, 860)]