2780455090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{39720787}}^1$

素因数の和:39720801

約数の個数: 16

約数和(自身を含む): 5719793472

約数和(自身を除く): 2939338382

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 39720787, 79441574, 198603935, 278045509, 397207870, 556091018, 1390227545, 2780455090]

約数ペア:

[(1, 2780455090), (2, 1390227545), (5, 556091018), (7, 397207870), (10, 278045509), (14, 198603935), (35, 79441574), (70, 39720787)]