20990510

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{13901}}^1$

素因数の和:14059

約数の個数: 16

約数和(自身を含む): 38035872

約数和(自身を除く): 17045362

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 13901, 27802, 69505, 139010, 2099051, 4198102, 10495255, 20990510]

約数ペア:

[(1, 20990510), (2, 10495255), (5, 4198102), (10, 2099051), (151, 139010), (302, 69505), (755, 27802), (1510, 13901)]