205987575

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{19759}}^1$

素因数の和:19911

約数の個数: 24

約数和(自身を含む): 343033600

約数和(自身を除く): 137046025

約数列:

[1, 3, 5, 15, 25, 75, 139, 417, 695, 2085, 3475, 10425, 19759, 59277, 98795, 296385, 493975, 1481925, 2746501, 8239503, 13732505, 41197515, 68662525, 205987575]

約数ペア:

[(1, 205987575), (3, 68662525), (5, 41197515), (15, 13732505), (25, 8239503), (75, 2746501), (139, 1481925), (417, 493975), (695, 296385), (2085, 98795), (3475, 59277), (10425, 19759)]