2803220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20023}}^1$

素因数の和:20039

約数の個数: 24

約数和(自身を含む): 6728064

約数和(自身を除く): 3924844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20023, 40046, 80092, 100115, 140161, 200230, 280322, 400460, 560644, 700805, 1401610, 2803220]

約数ペア:

[(1, 2803220), (2, 1401610), (4, 700805), (5, 560644), (7, 400460), (10, 280322), (14, 200230), (20, 140161), (28, 100115), (35, 80092), (70, 40046), (140, 20023)]