18913300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 29208620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 574, 659, 700, 820, 1025, 1148, 1318, 1435, 2050, 2636, 2870, 3295, 4100, 4613, 5740, 6590, 7175, 9226, 13180, 14350, 16475, 18452, 23065, 27019, 28700, 32950, 46130, 54038, 65900, 92260, 108076, 115325, 135095, 189133, 230650, 270190, 378266, 461300, 540380, 675475, 756532, 945665, 1350950, 1891330, 2701900, 3782660, 4728325, 9456650, 18913300]

約数ペア:

[(1, 18913300), (2, 9456650), (4, 4728325), (5, 3782660), (7, 2701900), (10, 1891330), (14, 1350950), (20, 945665), (25, 756532), (28, 675475), (35, 540380), (41, 461300), (50, 378266), (70, 270190), (82, 230650), (100, 189133), (140, 135095), (164, 115325), (175, 108076), (205, 92260), (287, 65900), (350, 54038), (410, 46130), (574, 32950), (659, 28700), (700, 27019), (820, 23065), (1025, 18452), (1148, 16475), (1318, 14350), (1435, 13180), (2050, 9226), (2636, 7175), (2870, 6590), (3295, 5740), (4100, 4613)]