21207200

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{541}}^1$

素因数の和:575

約数の個数: 108

約数和(自身を含む): 60335982

約数和(自身を除く): 39128782

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 350, 392, 400, 490, 541, 560, 700, 784, 800, 980, 1082, 1120, 1225, 1400, 1568, 1960, 2164, 2450, 2705, 2800, 3787, 3920, 4328, 4900, 5410, 5600, 7574, 7840, 8656, 9800, 10820, 13525, 15148, 17312, 18935, 19600, 21640, 26509, 27050, 30296, 37870, 39200, 43280, 53018, 54100, 60592, 75740, 86560, 94675, 106036, 108200, 121184, 132545, 151480, 189350, 212072, 216400, 265090, 302960, 378700, 424144, 432800, 530180, 605920, 662725, 757400, 848288, 1060360, 1325450, 1514800, 2120720, 2650900, 3029600, 4241440, 5301800, 10603600, 21207200]

約数ペア:

[(1, 21207200), (2, 10603600), (4, 5301800), (5, 4241440), (7, 3029600), (8, 2650900), (10, 2120720), (14, 1514800), (16, 1325450), (20, 1060360), (25, 848288), (28, 757400), (32, 662725), (35, 605920), (40, 530180), (49, 432800), (50, 424144), (56, 378700), (70, 302960), (80, 265090), (98, 216400), (100, 212072), (112, 189350), (140, 151480), (160, 132545), (175, 121184), (196, 108200), (200, 106036), (224, 94675), (245, 86560), (280, 75740), (350, 60592), (392, 54100), (400, 53018), (490, 43280), (541, 39200), (560, 37870), (700, 30296), (784, 27050), (800, 26509), (980, 21640), (1082, 19600), (1120, 18935), (1225, 17312), (1400, 15148), (1568, 13525), (1960, 10820), (2164, 9800), (2450, 8656), (2705, 7840), (2800, 7574), (3787, 5600), (3920, 5410), (4328, 4900)]