205121723355

素因数分解:

$3^4\times 5^1\times {\mathrm{506473391}}^1$

素因数の和:506473408

約数の個数: 20

約数和(自身を含む): 367699682592

約数和(自身を除く): 162577959237

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 506473391, 1519420173, 2532366955, 4558260519, 7597100865, 13674781557, 22791302595, 41024344671, 68373907785, 205121723355]

約数ペア:

[(1, 205121723355), (3, 68373907785), (5, 41024344671), (9, 22791302595), (15, 13674781557), (27, 7597100865), (45, 4558260519), (81, 2532366955), (135, 1519420173), (405, 506473391)]