71780715

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31277}}^1$

素因数の和:31308

約数の個数: 32

約数和(自身を含む): 135120960

約数和(自身を除く): 63340245

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 31277, 93831, 156385, 281493, 469155, 531709, 844479, 1407465, 1595127, 2658545, 4222395, 4785381, 7975635, 14356143, 23926905, 71780715]

約数ペア:

[(1, 71780715), (3, 23926905), (5, 14356143), (9, 7975635), (15, 4785381), (17, 4222395), (27, 2658545), (45, 1595127), (51, 1407465), (85, 844479), (135, 531709), (153, 469155), (255, 281493), (459, 156385), (765, 93831), (2295, 31277)]