208343205

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{220469}}^1$

素因数の和:220490

約数の個数: 32

約数和(自身を含む): 423302400

約数和(自身を除く): 214959195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 220469, 661407, 1102345, 1543283, 1984221, 3307035, 4629849, 5952663, 7716415, 9921105, 13889547, 23149245, 29763315, 41668641, 69447735, 208343205]

約数ペア:

[(1, 208343205), (3, 69447735), (5, 41668641), (7, 29763315), (9, 23149245), (15, 13889547), (21, 9921105), (27, 7716415), (35, 5952663), (45, 4629849), (63, 3307035), (105, 1984221), (135, 1543283), (189, 1102345), (315, 661407), (945, 220469)]