205435905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{4451}}^1$

素因数の和:4657

約数の個数: 32

約数和(自身を含む): 350034048

約数和(自身を除く): 144598143

約数列:

[1, 3, 5, 15, 17, 51, 85, 181, 255, 543, 905, 2715, 3077, 4451, 9231, 13353, 15385, 22255, 46155, 66765, 75667, 227001, 378335, 805631, 1135005, 2416893, 4028155, 12084465, 13695727, 41087181, 68478635, 205435905]

約数ペア:

[(1, 205435905), (3, 68478635), (5, 41087181), (15, 13695727), (17, 12084465), (51, 4028155), (85, 2416893), (181, 1135005), (255, 805631), (543, 378335), (905, 227001), (2715, 75667), (3077, 66765), (4451, 46155), (9231, 22255), (13353, 15385)]