20620480

素因数分解:

$2^6\times 5^1\times {\mathrm{64439}}^1$

素因数の和:64456

約数の個数: 28

約数和(自身を含む): 49103280

約数和(自身を除く): 28482800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64439, 128878, 257756, 322195, 515512, 644390, 1031024, 1288780, 2062048, 2577560, 4124096, 5155120, 10310240, 20620480]

約数ペア:

[(1, 20620480), (2, 10310240), (4, 5155120), (5, 4124096), (8, 2577560), (10, 2062048), (16, 1288780), (20, 1031024), (32, 644390), (40, 515512), (64, 322195), (80, 257756), (160, 128878), (320, 64439)]