51192320

素因数分解:

$2^9\times 5^1\times {\mathrm{19997}}^1$

素因数の和:20020

約数の個数: 40

約数和(自身を含む): 122747724

約数和(自身を除く): 71555404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 19997, 39994, 79988, 99985, 159976, 199970, 319952, 399940, 639904, 799880, 1279808, 1599760, 2559616, 3199520, 5119232, 6399040, 10238464, 12798080, 25596160, 51192320]

約数ペア:

[(1, 51192320), (2, 25596160), (4, 12798080), (5, 10238464), (8, 6399040), (10, 5119232), (16, 3199520), (20, 2559616), (32, 1599760), (40, 1279808), (64, 799880), (80, 639904), (128, 399940), (160, 319952), (256, 199970), (320, 159976), (512, 99985), (640, 79988), (1280, 39994), (2560, 19997)]