20724160

素因数分解:

$2^6\times 5^1\times {\mathrm{64763}}^1$

素因数の和:64780

約数の個数: 28

約数和(自身を含む): 49350168

約数和(自身を除く): 28626008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64763, 129526, 259052, 323815, 518104, 647630, 1036208, 1295260, 2072416, 2590520, 4144832, 5181040, 10362080, 20724160]

約数ペア:

[(1, 20724160), (2, 10362080), (4, 5181040), (5, 4144832), (8, 2590520), (10, 2072416), (16, 1295260), (20, 1036208), (32, 647630), (40, 518104), (64, 323815), (80, 259052), (160, 129526), (320, 64763)]