16809040

素因数分解:

$2^4\times 5^1\times {\mathrm{210113}}^1$

素因数の和:210126

約数の個数: 20

約数和(自身を含む): 39081204

約数和(自身を除く): 22272164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210113, 420226, 840452, 1050565, 1680904, 2101130, 3361808, 4202260, 8404520, 16809040]

約数ペア:

[(1, 16809040), (2, 8404520), (4, 4202260), (5, 3361808), (8, 2101130), (10, 1680904), (16, 1050565), (20, 840452), (40, 420226), (80, 210113)]