1663006475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{393611}}^1$

素因数の和:393647

約数の個数: 18

約数和(自身を含む): 2232960876

約数和(自身を除く): 569954401

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 393611, 1968055, 5116943, 9840275, 25584715, 66520259, 127923575, 332601295, 1663006475]

約数ペア:

[(1, 1663006475), (5, 332601295), (13, 127923575), (25, 66520259), (65, 25584715), (169, 9840275), (325, 5116943), (845, 1968055), (4225, 393611)]