189938985

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 311592960

約数和(自身を除く): 121653975

約数列:

[1, 3, 5, 15, 47, 141, 235, 419, 643, 705, 1257, 1929, 2095, 3215, 6285, 9645, 19693, 30221, 59079, 90663, 98465, 151105, 269417, 295395, 453315, 808251, 1347085, 4041255, 12662599, 37987797, 63312995, 189938985]

約数ペア:

[(1, 189938985), (3, 63312995), (5, 37987797), (15, 12662599), (47, 4041255), (141, 1347085), (235, 808251), (419, 453315), (643, 295395), (705, 269417), (1257, 151105), (1929, 98465), (2095, 90663), (3215, 59079), (6285, 30221), (9645, 19693)]