7679980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4987}}^1$

素因数の和:5014

約数の個数: 48

約数和(自身を含む): 20111616

約数和(自身を除く): 12431636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 4987, 9974, 19948, 24935, 34909, 49870, 54857, 69818, 99740, 109714, 139636, 174545, 219428, 274285, 349090, 383999, 548570, 698180, 767998, 1097140, 1535996, 1919995, 3839990, 7679980]

約数ペア:

[(1, 7679980), (2, 3839990), (4, 1919995), (5, 1535996), (7, 1097140), (10, 767998), (11, 698180), (14, 548570), (20, 383999), (22, 349090), (28, 274285), (35, 219428), (44, 174545), (55, 139636), (70, 109714), (77, 99740), (110, 69818), (140, 54857), (154, 49870), (220, 34909), (308, 24935), (385, 19948), (770, 9974), (1540, 4987)]