16312880

素因数分解:

$2^4\times 5^1\times {\mathrm{203911}}^1$

素因数の和:203924

約数の個数: 20

約数和(自身を含む): 37927632

約数和(自身を除く): 21614752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 203911, 407822, 815644, 1019555, 1631288, 2039110, 3262576, 4078220, 8156440, 16312880]

約数ペア:

[(1, 16312880), (2, 8156440), (4, 4078220), (5, 3262576), (8, 2039110), (10, 1631288), (16, 1019555), (20, 815644), (40, 407822), (80, 203911)]