28697840

素因数分解:

$2^4\times 5^1\times {\mathrm{358723}}^1$

素因数の和:358736

約数の個数: 20

約数和(自身を含む): 66722664

約数和(自身を除く): 38024824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358723, 717446, 1434892, 1793615, 2869784, 3587230, 5739568, 7174460, 14348920, 28697840]

約数ペア:

[(1, 28697840), (2, 14348920), (4, 7174460), (5, 5739568), (8, 3587230), (10, 2869784), (16, 1793615), (20, 1434892), (40, 717446), (80, 358723)]