2017820125

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{393721}}^1$

素因数の和:393777

約数の個数: 16

約数和(自身を含む): 2579666544

約数和(自身を除く): 561846419

約数列:

[1, 5, 25, 41, 125, 205, 1025, 5125, 393721, 1968605, 9843025, 16142561, 49215125, 80712805, 403564025, 2017820125]

約数ペア:

[(1, 2017820125), (5, 403564025), (25, 80712805), (41, 49215125), (125, 16142561), (205, 9843025), (1025, 1968605), (5125, 393721)]