28080855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 58226688

約数和(自身を除く): 30145833

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 47, 51, 55, 71, 85, 99, 141, 153, 165, 187, 213, 235, 255, 355, 423, 495, 517, 561, 639, 705, 765, 781, 799, 935, 1065, 1207, 1551, 1683, 2115, 2343, 2397, 2585, 2805, 3195, 3337, 3621, 3905, 3995, 4653, 6035, 7029, 7191, 7755, 8415, 8789, 10011, 10863, 11715, 11985, 13277, 16685, 18105, 23265, 26367, 30033, 35145, 35955, 36707, 39831, 43945, 50055, 54315, 56729, 66385, 79101, 110121, 119493, 131835, 150165, 170187, 183535, 199155, 283645, 330363, 395505, 510561, 550605, 597465, 624019, 850935, 1651815, 1872057, 2552805, 3120095, 5616171, 9360285, 28080855]

約数ペア:

[(1, 28080855), (3, 9360285), (5, 5616171), (9, 3120095), (11, 2552805), (15, 1872057), (17, 1651815), (33, 850935), (45, 624019), (47, 597465), (51, 550605), (55, 510561), (71, 395505), (85, 330363), (99, 283645), (141, 199155), (153, 183535), (165, 170187), (187, 150165), (213, 131835), (235, 119493), (255, 110121), (355, 79101), (423, 66385), (495, 56729), (517, 54315), (561, 50055), (639, 43945), (705, 39831), (765, 36707), (781, 35955), (799, 35145), (935, 30033), (1065, 26367), (1207, 23265), (1551, 18105), (1683, 16685), (2115, 13277), (2343, 11985), (2397, 11715), (2585, 10863), (2805, 10011), (3195, 8789), (3337, 8415), (3621, 7755), (3905, 7191), (3995, 7029), (4653, 6035)]