721053676

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 1508978688

約数和(自身を除く): 787925012

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 127, 211, 217, 254, 422, 434, 508, 844, 868, 889, 961, 1477, 1778, 1922, 2954, 3556, 3844, 3937, 5908, 6541, 6727, 7874, 13082, 13454, 15748, 26164, 26797, 26908, 27559, 45787, 53594, 55118, 91574, 107188, 110236, 122047, 183148, 187579, 202771, 244094, 375158, 405542, 488188, 750316, 811084, 830707, 854329, 1419397, 1661414, 1708658, 2838794, 3322828, 3417316, 5677588, 5814949, 11629898, 23259796, 25751917, 51503834, 103007668, 180263419, 360526838, 721053676]

約数ペア:

[(1, 721053676), (2, 360526838), (4, 180263419), (7, 103007668), (14, 51503834), (28, 25751917), (31, 23259796), (62, 11629898), (124, 5814949), (127, 5677588), (211, 3417316), (217, 3322828), (254, 2838794), (422, 1708658), (434, 1661414), (508, 1419397), (844, 854329), (868, 830707), (889, 811084), (961, 750316), (1477, 488188), (1778, 405542), (1922, 375158), (2954, 244094), (3556, 202771), (3844, 187579), (3937, 183148), (5908, 122047), (6541, 110236), (6727, 107188), (7874, 91574), (13082, 55118), (13454, 53594), (15748, 45787), (26164, 27559), (26797, 26908)]