2055400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 4910400

約数和(自身を除く): 2855000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 239, 344, 430, 478, 860, 956, 1075, 1195, 1720, 1912, 2150, 2390, 4300, 4780, 5975, 8600, 9560, 10277, 11950, 20554, 23900, 41108, 47800, 51385, 82216, 102770, 205540, 256925, 411080, 513850, 1027700, 2055400]

約数ペア:

[(1, 2055400), (2, 1027700), (4, 513850), (5, 411080), (8, 256925), (10, 205540), (20, 102770), (25, 82216), (40, 51385), (43, 47800), (50, 41108), (86, 23900), (100, 20554), (172, 11950), (200, 10277), (215, 9560), (239, 8600), (344, 5975), (430, 4780), (478, 4300), (860, 2390), (956, 2150), (1075, 1912), (1195, 1720)]