256426716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 759865344

約数和(自身を除く): 503438628

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 43, 52, 78, 84, 86, 91, 127, 129, 156, 172, 182, 254, 258, 273, 301, 364, 381, 508, 516, 546, 559, 602, 762, 889, 903, 1092, 1118, 1204, 1524, 1651, 1677, 1778, 1806, 1849, 2236, 2667, 3302, 3354, 3556, 3612, 3698, 3913, 4953, 5334, 5461, 5547, 6604, 6708, 7396, 7826, 9906, 10668, 10922, 11094, 11557, 11739, 12943, 15652, 16383, 19812, 21844, 22188, 23114, 23478, 24037, 25886, 32766, 34671, 38227, 38829, 46228, 46956, 48074, 51772, 65532, 69342, 70993, 72111, 76454, 77658, 96148, 114681, 138684, 141986, 144222, 152908, 155316, 168259, 212979, 229362, 234823, 283972, 288444, 336518, 425958, 458724, 469646, 496951, 504777, 673036, 704469, 851916, 939292, 993902, 1009554, 1408938, 1490853, 1643761, 1987804, 2019108, 2817876, 2981706, 3052699, 3287522, 4931283, 5963412, 6105398, 6575044, 9158097, 9862566, 12210796, 18316194, 19725132, 21368893, 36632388, 42737786, 64106679, 85475572, 128213358, 256426716]

約数ペア:

[(1, 256426716), (2, 128213358), (3, 85475572), (4, 64106679), (6, 42737786), (7, 36632388), (12, 21368893), (13, 19725132), (14, 18316194), (21, 12210796), (26, 9862566), (28, 9158097), (39, 6575044), (42, 6105398), (43, 5963412), (52, 4931283), (78, 3287522), (84, 3052699), (86, 2981706), (91, 2817876), (127, 2019108), (129, 1987804), (156, 1643761), (172, 1490853), (182, 1408938), (254, 1009554), (258, 993902), (273, 939292), (301, 851916), (364, 704469), (381, 673036), (508, 504777), (516, 496951), (546, 469646), (559, 458724), (602, 425958), (762, 336518), (889, 288444), (903, 283972), (1092, 234823), (1118, 229362), (1204, 212979), (1524, 168259), (1651, 155316), (1677, 152908), (1778, 144222), (1806, 141986), (1849, 138684), (2236, 114681), (2667, 96148), (3302, 77658), (3354, 76454), (3556, 72111), (3612, 70993), (3698, 69342), (3913, 65532), (4953, 51772), (5334, 48074), (5461, 46956), (5547, 46228), (6604, 38829), (6708, 38227), (7396, 34671), (7826, 32766), (9906, 25886), (10668, 24037), (10922, 23478), (11094, 23114), (11557, 22188), (11739, 21844), (12943, 19812), (15652, 16383)]