20875720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22691}}^1$

素因数の和:22725

約数の個数: 32

約数和(自身を含む): 49014720

約数和(自身を除く): 28139000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22691, 45382, 90764, 113455, 181528, 226910, 453820, 521893, 907640, 1043786, 2087572, 2609465, 4175144, 5218930, 10437860, 20875720]

約数ペア:

[(1, 20875720), (2, 10437860), (4, 5218930), (5, 4175144), (8, 2609465), (10, 2087572), (20, 1043786), (23, 907640), (40, 521893), (46, 453820), (92, 226910), (115, 181528), (184, 113455), (230, 90764), (460, 45382), (920, 22691)]