205965

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 374400

約数和(自身を除く): 168435

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 199, 207, 345, 597, 995, 1035, 1791, 2985, 4577, 8955, 13731, 22885, 41193, 68655, 205965]

約数ペア:

[(1, 205965), (3, 68655), (5, 41193), (9, 22885), (15, 13731), (23, 8955), (45, 4577), (69, 2985), (115, 1791), (199, 1035), (207, 995), (345, 597)]