2438240

素因数分解:

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

素因数の和:340

約数の個数: 72

約数和(自身を含む): 6722352

約数和(自身を除く): 4284112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 311, 392, 490, 560, 622, 784, 980, 1120, 1244, 1555, 1568, 1960, 2177, 2488, 3110, 3920, 4354, 4976, 6220, 7840, 8708, 9952, 10885, 12440, 15239, 17416, 21770, 24880, 30478, 34832, 43540, 49760, 60956, 69664, 76195, 87080, 121912, 152390, 174160, 243824, 304780, 348320, 487648, 609560, 1219120, 2438240]

約数ペア:

[(1, 2438240), (2, 1219120), (4, 609560), (5, 487648), (7, 348320), (8, 304780), (10, 243824), (14, 174160), (16, 152390), (20, 121912), (28, 87080), (32, 76195), (35, 69664), (40, 60956), (49, 49760), (56, 43540), (70, 34832), (80, 30478), (98, 24880), (112, 21770), (140, 17416), (160, 15239), (196, 12440), (224, 10885), (245, 9952), (280, 8708), (311, 7840), (392, 6220), (490, 4976), (560, 4354), (622, 3920), (784, 3110), (980, 2488), (1120, 2177), (1244, 1960), (1555, 1568)]