127729540

素因数分解:

$2^2\times 5^1\times {\mathrm{1543}}^1\times {\mathrm{4139}}^1$

素因数の和:5691

約数の個数: 24

約数和(自身を含む): 268470720

約数和(自身を除く): 140741180

約数列:

[1, 2, 4, 5, 10, 20, 1543, 3086, 4139, 6172, 7715, 8278, 15430, 16556, 20695, 30860, 41390, 82780, 6386477, 12772954, 25545908, 31932385, 63864770, 127729540]

約数ペア:

[(1, 127729540), (2, 63864770), (4, 31932385), (5, 25545908), (10, 12772954), (20, 6386477), (1543, 82780), (3086, 41390), (4139, 30860), (6172, 20695), (7715, 16556), (8278, 15430)]