20348745

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 34732800

約数和(自身を除く): 14384055

約数列:

[1, 3, 5, 15, 17, 51, 85, 199, 255, 401, 597, 995, 1203, 2005, 2985, 3383, 6015, 6817, 10149, 16915, 20451, 34085, 50745, 79799, 102255, 239397, 398995, 1196985, 1356583, 4069749, 6782915, 20348745]

約数ペア:

[(1, 20348745), (3, 6782915), (5, 4069749), (15, 1356583), (17, 1196985), (51, 398995), (85, 239397), (199, 102255), (255, 79799), (401, 50745), (597, 34085), (995, 20451), (1203, 16915), (2005, 10149), (2985, 6817), (3383, 6015)]