71960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 185760

約数和(自身を除く): 113800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2570, 3598, 5140, 7196, 8995, 10280, 14392, 17990, 35980, 71960]

約数ペア:

[(1, 71960), (2, 35980), (4, 17990), (5, 14392), (7, 10280), (8, 8995), (10, 7196), (14, 5140), (20, 3598), (28, 2570), (35, 2056), (40, 1799), (56, 1285), (70, 1028), (140, 514), (257, 280)]