28311885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 59769216

約数和(自身を除く): 31457331

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 289, 311, 315, 357, 595, 765, 867, 933, 1071, 1445, 1555, 1785, 2023, 2177, 2601, 2799, 4335, 4665, 5287, 5355, 6069, 6531, 10115, 10885, 13005, 13995, 15861, 18207, 19593, 26435, 30345, 32655, 37009, 47583, 79305, 89879, 91035, 97965, 111027, 185045, 237915, 269637, 333081, 449395, 555135, 629153, 808911, 1348185, 1665405, 1887459, 3145765, 4044555, 5662377, 9437295, 28311885]

約数ペア:

[(1, 28311885), (3, 9437295), (5, 5662377), (7, 4044555), (9, 3145765), (15, 1887459), (17, 1665405), (21, 1348185), (35, 808911), (45, 629153), (51, 555135), (63, 449395), (85, 333081), (105, 269637), (119, 237915), (153, 185045), (255, 111027), (289, 97965), (311, 91035), (315, 89879), (357, 79305), (595, 47583), (765, 37009), (867, 32655), (933, 30345), (1071, 26435), (1445, 19593), (1555, 18207), (1785, 15861), (2023, 13995), (2177, 13005), (2601, 10885), (2799, 10115), (4335, 6531), (4665, 6069), (5287, 5355)]