120408920

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{6857}}^1$

素因数の和:7307

約数の個数: 32

約数和(自身を含む): 271576800

約数和(自身を除く): 151167880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 6857, 8780, 13714, 17560, 27428, 34285, 54856, 68570, 137140, 274280, 3010223, 6020446, 12040892, 15051115, 24081784, 30102230, 60204460, 120408920]

約数ペア:

[(1, 120408920), (2, 60204460), (4, 30102230), (5, 24081784), (8, 15051115), (10, 12040892), (20, 6020446), (40, 3010223), (439, 274280), (878, 137140), (1756, 68570), (2195, 54856), (3512, 34285), (4390, 27428), (6857, 17560), (8780, 13714)]