131380120

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{6857}}^1$

素因数の和:7347

約数の個数: 32

約数和(自身を含む): 296265600

約数和(自身を除く): 164885480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1916, 2395, 3832, 4790, 6857, 9580, 13714, 19160, 27428, 34285, 54856, 68570, 137140, 274280, 3284503, 6569006, 13138012, 16422515, 26276024, 32845030, 65690060, 131380120]

約数ペア:

[(1, 131380120), (2, 65690060), (4, 32845030), (5, 26276024), (8, 16422515), (10, 13138012), (20, 6569006), (40, 3284503), (479, 274280), (958, 137140), (1916, 68570), (2395, 54856), (3832, 34285), (4790, 27428), (6857, 19160), (9580, 13714)]