218719905

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{1559}}^1$

素因数の和:1813

約数の個数: 32

約数和(自身を含む): 359424000

約数和(自身を除く): 140704095

約数列:

[1, 3, 5, 15, 47, 141, 199, 235, 597, 705, 995, 1559, 2985, 4677, 7795, 9353, 23385, 28059, 46765, 73273, 140295, 219819, 310241, 366365, 930723, 1099095, 1551205, 4653615, 14581327, 43743981, 72906635, 218719905]

約数ペア:

[(1, 218719905), (3, 72906635), (5, 43743981), (15, 14581327), (47, 4653615), (141, 1551205), (199, 1099095), (235, 930723), (597, 366365), (705, 310241), (995, 219819), (1559, 140295), (2985, 73273), (4677, 46765), (7795, 28059), (9353, 23385)]