138865185

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1723}}^1$

素因数の和:1939

約数の個数: 40

約数和(自身を含む): 250324800

約数和(自身を除く): 111459615

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 405, 597, 995, 1723, 1791, 2985, 5169, 5373, 8615, 8955, 15507, 16119, 25845, 26865, 46521, 77535, 80595, 139563, 232605, 342877, 697815, 1028631, 1714385, 3085893, 5143155, 9257679, 15429465, 27773037, 46288395, 138865185]

約数ペア:

[(1, 138865185), (3, 46288395), (5, 27773037), (9, 15429465), (15, 9257679), (27, 5143155), (45, 3085893), (81, 1714385), (135, 1028631), (199, 697815), (405, 342877), (597, 232605), (995, 139563), (1723, 80595), (1791, 77535), (2985, 46521), (5169, 26865), (5373, 25845), (8615, 16119), (8955, 15507)]