4207400

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 9923100

約数和(自身を除く): 5715700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 193, 200, 218, 386, 436, 545, 772, 872, 965, 1090, 1544, 1930, 2180, 2725, 3860, 4360, 4825, 5450, 7720, 9650, 10900, 19300, 21037, 21800, 38600, 42074, 84148, 105185, 168296, 210370, 420740, 525925, 841480, 1051850, 2103700, 4207400]

約数ペア:

[(1, 4207400), (2, 2103700), (4, 1051850), (5, 841480), (8, 525925), (10, 420740), (20, 210370), (25, 168296), (40, 105185), (50, 84148), (100, 42074), (109, 38600), (193, 21800), (200, 21037), (218, 19300), (386, 10900), (436, 9650), (545, 7720), (772, 5450), (872, 4825), (965, 4360), (1090, 3860), (1544, 2725), (1930, 2180)]