81642975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37537}}^1$

素因数の和:37579

約数の個数: 24

約数和(自身を含む): 139641360

約数和(自身を除く): 57998385

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 37537, 112611, 187685, 563055, 938425, 1088573, 2815275, 3265719, 5442865, 16328595, 27214325, 81642975]

約数ペア:

[(1, 81642975), (3, 27214325), (5, 16328595), (15, 5442865), (25, 3265719), (29, 2815275), (75, 1088573), (87, 938425), (145, 563055), (435, 187685), (725, 112611), (2175, 37537)]