247620140

素因数分解:

$2^2\times 5^1\times {\mathrm{3121}}^1\times {\mathrm{3967}}^1$

素因数の和:7097

約数の個数: 24

約数和(自身を含む): 520300032

約数和(自身を除く): 272679892

約数列:

[1, 2, 4, 5, 10, 20, 3121, 3967, 6242, 7934, 12484, 15605, 15868, 19835, 31210, 39670, 62420, 79340, 12381007, 24762014, 49524028, 61905035, 123810070, 247620140]

約数ペア:

[(1, 247620140), (2, 123810070), (4, 61905035), (5, 49524028), (10, 24762014), (20, 12381007), (3121, 79340), (3967, 62420), (6242, 39670), (7934, 31210), (12484, 19835), (15605, 15868)]