20157709324

素因数分解:

$2^2\times {\mathrm{89}}^2\times {\mathrm{636211}}^1$

素因数の和:636393

約数の個数: 18

約数和(自身を含む): 35676860324

約数和(自身を除く): 15519151000

約数列:

[1, 2, 4, 89, 178, 356, 7921, 15842, 31684, 636211, 1272422, 2544844, 56622779, 113245558, 226491116, 5039427331, 10078854662, 20157709324]

約数ペア:

[(1, 20157709324), (2, 10078854662), (4, 5039427331), (89, 226491116), (178, 113245558), (356, 56622779), (7921, 2544844), (15842, 1272422), (31684, 636211)]