208040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{743}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 535680

約数和(自身を除く): 327640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 743, 1486, 2972, 3715, 5201, 5944, 7430, 10402, 14860, 20804, 26005, 29720, 41608, 52010, 104020, 208040]

約数ペア:

[(1, 208040), (2, 104020), (4, 52010), (5, 41608), (7, 29720), (8, 26005), (10, 20804), (14, 14860), (20, 10402), (28, 7430), (35, 5944), (40, 5201), (56, 3715), (70, 2972), (140, 1486), (280, 743)]