1561895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 16

約数和(自身を含む): 2026080

約数和(自身を除く): 464185

約数列:

[1, 5, 19, 41, 95, 205, 401, 779, 2005, 3895, 7619, 16441, 38095, 82205, 312379, 1561895]

約数ペア:

[(1, 1561895), (5, 312379), (19, 82205), (41, 38095), (95, 16441), (205, 7619), (401, 3895), (779, 2005)]