803840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{157}}^1$

素因数の和:182

約数の個数: 44

約数和(自身を含む): 1940556

約数和(自身を除く): 1136716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 512, 628, 640, 785, 1024, 1256, 1280, 1570, 2512, 2560, 3140, 5024, 5120, 6280, 10048, 12560, 20096, 25120, 40192, 50240, 80384, 100480, 160768, 200960, 401920, 803840]

約数ペア:

[(1, 803840), (2, 401920), (4, 200960), (5, 160768), (8, 100480), (10, 80384), (16, 50240), (20, 40192), (32, 25120), (40, 20096), (64, 12560), (80, 10048), (128, 6280), (157, 5120), (160, 5024), (256, 3140), (314, 2560), (320, 2512), (512, 1570), (628, 1280), (640, 1256), (785, 1024)]