26283920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 66662400

約数和(自身を除く): 40378480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 199, 208, 254, 260, 398, 508, 520, 635, 796, 995, 1016, 1040, 1270, 1592, 1651, 1990, 2032, 2540, 2587, 3184, 3302, 3980, 5080, 5174, 6604, 7960, 8255, 10160, 10348, 12935, 13208, 15920, 16510, 20696, 25273, 25870, 26416, 33020, 41392, 50546, 51740, 66040, 101092, 103480, 126365, 132080, 202184, 206960, 252730, 328549, 404368, 505460, 657098, 1010920, 1314196, 1642745, 2021840, 2628392, 3285490, 5256784, 6570980, 13141960, 26283920]

約数ペア:

[(1, 26283920), (2, 13141960), (4, 6570980), (5, 5256784), (8, 3285490), (10, 2628392), (13, 2021840), (16, 1642745), (20, 1314196), (26, 1010920), (40, 657098), (52, 505460), (65, 404368), (80, 328549), (104, 252730), (127, 206960), (130, 202184), (199, 132080), (208, 126365), (254, 103480), (260, 101092), (398, 66040), (508, 51740), (520, 50546), (635, 41392), (796, 33020), (995, 26416), (1016, 25870), (1040, 25273), (1270, 20696), (1592, 16510), (1651, 15920), (1990, 13208), (2032, 12935), (2540, 10348), (2587, 10160), (3184, 8255), (3302, 7960), (3980, 6604), (5080, 5174)]