20128892

素因数分解:

$2^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1259}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 20231428

約数列:

[1, 2, 4, 7, 14, 28, 571, 1142, 1259, 2284, 2518, 3997, 5036, 7994, 8813, 15988, 17626, 35252, 718889, 1437778, 2875556, 5032223, 10064446, 20128892]

約数ペア:

[(1, 20128892), (2, 10064446), (4, 5032223), (7, 2875556), (14, 1437778), (28, 718889), (571, 35252), (1142, 17626), (1259, 15988), (2284, 8813), (2518, 7994), (3997, 5036)]