138666325

素因数分解:

$5^2\times 7^3\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 203756800

約数和(自身を除く): 65090475

約数列:

[1, 5, 7, 25, 35, 49, 103, 157, 175, 245, 343, 515, 721, 785, 1099, 1225, 1715, 2575, 3605, 3925, 5047, 5495, 7693, 8575, 16171, 18025, 25235, 27475, 35329, 38465, 53851, 80855, 113197, 126175, 176645, 192325, 269255, 404275, 565985, 792379, 883225, 1346275, 2829925, 3961895, 5546653, 19809475, 27733265, 138666325]

約数ペア:

[(1, 138666325), (5, 27733265), (7, 19809475), (25, 5546653), (35, 3961895), (49, 2829925), (103, 1346275), (157, 883225), (175, 792379), (245, 565985), (343, 404275), (515, 269255), (721, 192325), (785, 176645), (1099, 126175), (1225, 113197), (1715, 80855), (2575, 53851), (3605, 38465), (3925, 35329), (5047, 27475), (5495, 25235), (7693, 18025), (8575, 16171)]