155140775

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{521}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 197938224

約数和(自身を除く): 42797449

約数列:

[1, 5, 25, 43, 215, 277, 521, 1075, 1385, 2605, 6925, 11911, 13025, 22403, 59555, 112015, 144317, 297775, 560075, 721585, 3607925, 6205631, 31028155, 155140775]

約数ペア:

[(1, 155140775), (5, 31028155), (25, 6205631), (43, 3607925), (215, 721585), (277, 560075), (521, 297775), (1075, 144317), (1385, 112015), (2605, 59555), (6925, 22403), (11911, 13025)]