212725900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1087}}^1$

素因数の和:1223

約数の個数: 72

約数和(自身を含む): 491079680

約数和(自身を除く): 278353780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 103, 190, 206, 380, 412, 475, 515, 950, 1030, 1087, 1900, 1957, 2060, 2174, 2575, 3914, 4348, 5150, 5435, 7828, 9785, 10300, 10870, 19570, 20653, 21740, 27175, 39140, 41306, 48925, 54350, 82612, 97850, 103265, 108700, 111961, 195700, 206530, 223922, 413060, 447844, 516325, 559805, 1032650, 1119610, 2065300, 2127259, 2239220, 2799025, 4254518, 5598050, 8509036, 10636295, 11196100, 21272590, 42545180, 53181475, 106362950, 212725900]

約数ペア:

[(1, 212725900), (2, 106362950), (4, 53181475), (5, 42545180), (10, 21272590), (19, 11196100), (20, 10636295), (25, 8509036), (38, 5598050), (50, 4254518), (76, 2799025), (95, 2239220), (100, 2127259), (103, 2065300), (190, 1119610), (206, 1032650), (380, 559805), (412, 516325), (475, 447844), (515, 413060), (950, 223922), (1030, 206530), (1087, 195700), (1900, 111961), (1957, 108700), (2060, 103265), (2174, 97850), (2575, 82612), (3914, 54350), (4348, 48925), (5150, 41306), (5435, 39140), (7828, 27175), (9785, 21740), (10300, 20653), (10870, 19570)]