390400825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{503743}}^1$

素因数の和:503784

約数の個数: 12

約数和(自身を含む): 499714048

約数和(自身を除く): 109313223

約数列:

[1, 5, 25, 31, 155, 775, 503743, 2518715, 12593575, 15616033, 78080165, 390400825]

約数ペア:

[(1, 390400825), (5, 78080165), (25, 15616033), (31, 12593575), (155, 2518715), (775, 503743)]