31879845

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 30328155

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 255, 261, 435, 459, 479, 493, 765, 783, 1305, 1437, 1479, 2295, 2395, 2465, 3915, 4311, 4437, 7185, 7395, 8143, 12933, 13311, 13891, 21555, 22185, 24429, 40715, 41673, 64665, 66555, 69455, 73287, 122145, 125019, 208365, 219861, 236147, 366435, 375057, 625095, 708441, 1099305, 1180735, 1875285, 2125323, 3542205, 6375969, 10626615, 31879845]

約数ペア:

[(1, 31879845), (3, 10626615), (5, 6375969), (9, 3542205), (15, 2125323), (17, 1875285), (27, 1180735), (29, 1099305), (45, 708441), (51, 625095), (85, 375057), (87, 366435), (135, 236147), (145, 219861), (153, 208365), (255, 125019), (261, 122145), (435, 73287), (459, 69455), (479, 66555), (493, 64665), (765, 41673), (783, 40715), (1305, 24429), (1437, 22185), (1479, 21555), (2295, 13891), (2395, 13311), (2465, 12933), (3915, 8143), (4311, 7395), (4437, 7185)]