208589416

素因数分解:

$2^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{20809}}^1$

素因数の和:21001

約数の個数: 32

約数和(自身を含む): 449496000

約数和(自身を除く): 240906584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 179, 358, 716, 1253, 1432, 2506, 5012, 10024, 20809, 41618, 83236, 145663, 166472, 291326, 582652, 1165304, 3724811, 7449622, 14899244, 26073677, 29798488, 52147354, 104294708, 208589416]

約数ペア:

[(1, 208589416), (2, 104294708), (4, 52147354), (7, 29798488), (8, 26073677), (14, 14899244), (28, 7449622), (56, 3724811), (179, 1165304), (358, 582652), (716, 291326), (1253, 166472), (1432, 145663), (2506, 83236), (5012, 41618), (10024, 20809)]