81310180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580787}}^1$

素因数の和:580803

約数の個数: 24

約数和(自身を含む): 195144768

約数和(自身を除く): 113834588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580787, 1161574, 2323148, 2903935, 4065509, 5807870, 8131018, 11615740, 16262036, 20327545, 40655090, 81310180]

約数ペア:

[(1, 81310180), (2, 40655090), (4, 20327545), (5, 16262036), (7, 11615740), (10, 8131018), (14, 5807870), (20, 4065509), (28, 2903935), (35, 2323148), (70, 1161574), (140, 580787)]