1990234064

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{80407}}^1$

素因数の和:80452

約数の個数: 80

約数和(自身を含む): 5025178368

約数和(自身を除く): 3034944304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 884, 952, 1456, 1547, 1768, 1904, 3094, 3536, 6188, 12376, 24752, 80407, 160814, 321628, 562849, 643256, 1045291, 1125698, 1286512, 1366919, 2090582, 2251396, 2733838, 4181164, 4502792, 5467676, 7317037, 8362328, 9005584, 9568433, 10935352, 14634074, 16724656, 17769947, 19136866, 21870704, 29268148, 35539894, 38273732, 58536296, 71079788, 76547464, 117072592, 124389629, 142159576, 153094928, 248779258, 284319152, 497558516, 995117032, 1990234064]

約数ペア:

[(1, 1990234064), (2, 995117032), (4, 497558516), (7, 284319152), (8, 248779258), (13, 153094928), (14, 142159576), (16, 124389629), (17, 117072592), (26, 76547464), (28, 71079788), (34, 58536296), (52, 38273732), (56, 35539894), (68, 29268148), (91, 21870704), (104, 19136866), (112, 17769947), (119, 16724656), (136, 14634074), (182, 10935352), (208, 9568433), (221, 9005584), (238, 8362328), (272, 7317037), (364, 5467676), (442, 4502792), (476, 4181164), (728, 2733838), (884, 2251396), (952, 2090582), (1456, 1366919), (1547, 1286512), (1768, 1125698), (1904, 1045291), (3094, 643256), (3536, 562849), (6188, 321628), (12376, 160814), (24752, 80407)]