2557187465

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{557729}}^1$

素因数の和:557872

約数の個数: 16

約数和(自身を含む): 3533777280

約数和(自身を除く): 976589815

約数列:

[1, 5, 7, 35, 131, 655, 917, 4585, 557729, 2788645, 3904103, 19520515, 73062499, 365312495, 511437493, 2557187465]

約数ペア:

[(1, 2557187465), (5, 511437493), (7, 365312495), (35, 73062499), (131, 19520515), (655, 3904103), (917, 2788645), (4585, 557729)]