205600

素因数分解:

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

素因数の和:277

約数の個数: 36

約数和(自身を含む): 503874

約数和(自身を除く): 298274

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 257, 400, 514, 800, 1028, 1285, 2056, 2570, 4112, 5140, 6425, 8224, 10280, 12850, 20560, 25700, 41120, 51400, 102800, 205600]

約数ペア:

[(1, 205600), (2, 102800), (4, 51400), (5, 41120), (8, 25700), (10, 20560), (16, 12850), (20, 10280), (25, 8224), (32, 6425), (40, 5140), (50, 4112), (80, 2570), (100, 2056), (160, 1285), (200, 1028), (257, 800), (400, 514)]