28088505

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12239}}^1$

素因数の和:12270

約数の個数: 32

約数和(自身を含む): 52876800

約数和(自身を除く): 24788295

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 12239, 36717, 61195, 110151, 183585, 208063, 330453, 550755, 624189, 1040315, 1652265, 1872567, 3120945, 5617701, 9362835, 28088505]

約数ペア:

[(1, 28088505), (3, 9362835), (5, 5617701), (9, 3120945), (15, 1872567), (17, 1652265), (27, 1040315), (45, 624189), (51, 550755), (85, 330453), (135, 208063), (153, 183585), (255, 110151), (459, 61195), (765, 36717), (2295, 12239)]