28120540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200861}}^1$

素因数の和:200877

約数の個数: 24

約数和(自身を含む): 67489632

約数和(自身を除く): 39369092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200861, 401722, 803444, 1004305, 1406027, 2008610, 2812054, 4017220, 5624108, 7030135, 14060270, 28120540]

約数ペア:

[(1, 28120540), (2, 14060270), (4, 7030135), (5, 5624108), (7, 4017220), (10, 2812054), (14, 2008610), (20, 1406027), (28, 1004305), (35, 803444), (70, 401722), (140, 200861)]