200910407870

素因数分解:

$2^1\times 5^1\times {\mathrm{138289}}^1\times {\mathrm{145283}}^1$

素因数の和:283579

約数の個数: 16

約数和(自身を含む): 361643838480

約数和(自身を除く): 160733430610

約数列:

[1, 2, 5, 10, 138289, 145283, 276578, 290566, 691445, 726415, 1382890, 1452830, 20091040787, 40182081574, 100455203935, 200910407870]

約数ペア:

[(1, 200910407870), (2, 100455203935), (5, 40182081574), (10, 20091040787), (138289, 1452830), (145283, 1382890), (276578, 726415), (290566, 691445)]