78212780

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{23417}}^1$

素因数の和:23593

約数の個数: 24

約数和(自身を含む): 165237408

約数和(自身を除く): 87024628

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 23417, 46834, 93668, 117085, 234170, 468340, 3910639, 7821278, 15642556, 19553195, 39106390, 78212780]

約数ペア:

[(1, 78212780), (2, 39106390), (4, 19553195), (5, 15642556), (10, 7821278), (20, 3910639), (167, 468340), (334, 234170), (668, 117085), (835, 93668), (1670, 46834), (3340, 23417)]