2540090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 5284224

約数和(自身を除く): 2744134

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 277, 554, 655, 917, 1310, 1385, 1834, 1939, 2770, 3878, 4585, 9170, 9695, 19390, 36287, 72574, 181435, 254009, 362870, 508018, 1270045, 2540090]

約数ペア:

[(1, 2540090), (2, 1270045), (5, 508018), (7, 362870), (10, 254009), (14, 181435), (35, 72574), (70, 36287), (131, 19390), (262, 9695), (277, 9170), (554, 4585), (655, 3878), (917, 2770), (1310, 1939), (1385, 1834)]