20550880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36058400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 70, 80, 112, 118, 140, 160, 224, 236, 280, 295, 311, 413, 472, 560, 590, 622, 826, 944, 1120, 1180, 1244, 1555, 1652, 1888, 2065, 2177, 2360, 2488, 3110, 3304, 4130, 4354, 4720, 4976, 6220, 6608, 8260, 8708, 9440, 9952, 10885, 12440, 13216, 16520, 17416, 18349, 21770, 24880, 33040, 34832, 36698, 43540, 49760, 66080, 69664, 73396, 87080, 91745, 128443, 146792, 174160, 183490, 256886, 293584, 348320, 366980, 513772, 587168, 642215, 733960, 1027544, 1284430, 1467920, 2055088, 2568860, 2935840, 4110176, 5137720, 10275440, 20550880]

約数ペア:

[(1, 20550880), (2, 10275440), (4, 5137720), (5, 4110176), (7, 2935840), (8, 2568860), (10, 2055088), (14, 1467920), (16, 1284430), (20, 1027544), (28, 733960), (32, 642215), (35, 587168), (40, 513772), (56, 366980), (59, 348320), (70, 293584), (80, 256886), (112, 183490), (118, 174160), (140, 146792), (160, 128443), (224, 91745), (236, 87080), (280, 73396), (295, 69664), (311, 66080), (413, 49760), (472, 43540), (560, 36698), (590, 34832), (622, 33040), (826, 24880), (944, 21770), (1120, 18349), (1180, 17416), (1244, 16520), (1555, 13216), (1652, 12440), (1888, 10885), (2065, 9952), (2177, 9440), (2360, 8708), (2488, 8260), (3110, 6608), (3304, 6220), (4130, 4976), (4354, 4720)]