20348245

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 26168832

約数和(自身を除く): 5820587

約数列:

[1, 5, 31, 43, 71, 155, 215, 355, 1333, 1849, 2201, 3053, 6665, 9245, 11005, 15265, 57319, 94643, 131279, 286595, 473215, 656395, 4069649, 20348245]

約数ペア:

[(1, 20348245), (5, 4069649), (31, 656395), (43, 473215), (71, 286595), (155, 131279), (215, 94643), (355, 57319), (1333, 15265), (1849, 11005), (2201, 9245), (3053, 6665)]