20480960

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2207}}^1$

素因数の和:2253

約数の個数: 56

約数和(自身を含む): 50474880

約数和(自身を除く): 29993920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2207, 2320, 4414, 4640, 8828, 9280, 11035, 17656, 22070, 35312, 44140, 64003, 70624, 88280, 128006, 141248, 176560, 256012, 320015, 353120, 512024, 640030, 706240, 1024048, 1280060, 2048096, 2560120, 4096192, 5120240, 10240480, 20480960]

約数ペア:

[(1, 20480960), (2, 10240480), (4, 5120240), (5, 4096192), (8, 2560120), (10, 2048096), (16, 1280060), (20, 1024048), (29, 706240), (32, 640030), (40, 512024), (58, 353120), (64, 320015), (80, 256012), (116, 176560), (145, 141248), (160, 128006), (232, 88280), (290, 70624), (320, 64003), (464, 44140), (580, 35312), (928, 22070), (1160, 17656), (1856, 11035), (2207, 9280), (2320, 8828), (4414, 4640)]