28988145

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{743}}^1$

素因数の和:791

約数の個数: 48

約数和(自身を含む): 54817920

約数和(自身を除く): 25829775

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 289, 459, 743, 765, 867, 1445, 2229, 2295, 2601, 3715, 4335, 6687, 7803, 11145, 12631, 13005, 20061, 33435, 37893, 39015, 63155, 100305, 113679, 189465, 214727, 341037, 568395, 644181, 1073635, 1705185, 1932543, 3220905, 5797629, 9662715, 28988145]

約数ペア:

[(1, 28988145), (3, 9662715), (5, 5797629), (9, 3220905), (15, 1932543), (17, 1705185), (27, 1073635), (45, 644181), (51, 568395), (85, 341037), (135, 214727), (153, 189465), (255, 113679), (289, 100305), (459, 63155), (743, 39015), (765, 37893), (867, 33435), (1445, 20061), (2229, 13005), (2295, 12631), (2601, 11145), (3715, 7803), (4335, 6687)]