20201488

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17783}}^1$

素因数の和:17862

約数の個数: 20

約数和(自身を含む): 39693888

約数和(自身を除く): 19492400

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17783, 35566, 71132, 142264, 284528, 1262593, 2525186, 5050372, 10100744, 20201488]

約数ペア:

[(1, 20201488), (2, 10100744), (4, 5050372), (8, 2525186), (16, 1262593), (71, 284528), (142, 142264), (284, 71132), (568, 35566), (1136, 17783)]