20139175

素因数分解:

$5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{733}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 28761056

約数和(自身を除く): 8621881

約数列:

[1, 5, 7, 25, 35, 157, 175, 733, 785, 1099, 3665, 3925, 5131, 5495, 18325, 25655, 27475, 115081, 128275, 575405, 805567, 2877025, 4027835, 20139175]

約数ペア:

[(1, 20139175), (5, 4027835), (7, 2877025), (25, 805567), (35, 575405), (157, 128275), (175, 115081), (733, 27475), (785, 25655), (1099, 18325), (3665, 5495), (3925, 5131)]