20129890165

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7469347}}^1$

素因数の和:7469377

約数の個数: 24

約数和(自身を含む): 30654204192

約数和(自身を除く): 10524314027

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 7469347, 37346735, 52285429, 82162817, 261427145, 365998003, 410814085, 575139719, 1829990015, 2875698595, 4025978033, 20129890165]

約数ペア:

[(1, 20129890165), (5, 4025978033), (7, 2875698595), (11, 1829990015), (35, 575139719), (49, 410814085), (55, 365998003), (77, 261427145), (245, 82162817), (385, 52285429), (539, 37346735), (2695, 7469347)]