20157325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 27105408

約数和(自身を除く): 6948083

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1103, 3655, 5515, 18275, 18751, 27575, 47429, 93755, 237145, 468775, 806293, 1185725, 4031465, 20157325]

約数ペア:

[(1, 20157325), (5, 4031465), (17, 1185725), (25, 806293), (43, 468775), (85, 237145), (215, 93755), (425, 47429), (731, 27575), (1075, 18751), (1103, 18275), (3655, 5515)]