28701505

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3779}}^1$

素因数の和:3829

約数の個数: 24

約数和(自身を含む): 41368320

約数和(自身を除く): 12666815

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 3779, 7595, 18895, 26453, 117149, 132265, 185171, 585745, 820043, 925855, 4100215, 5740301, 28701505]

約数ペア:

[(1, 28701505), (5, 5740301), (7, 4100215), (31, 925855), (35, 820043), (49, 585745), (155, 185171), (217, 132265), (245, 117149), (1085, 26453), (1519, 18895), (3779, 7595)]