255311984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 544465152

約数和(自身を除く): 289153168

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 83, 86, 136, 166, 172, 263, 272, 332, 344, 526, 664, 688, 731, 1052, 1328, 1411, 1462, 2104, 2822, 2924, 3569, 4208, 4471, 5644, 5848, 7138, 8942, 11288, 11309, 11696, 14276, 17884, 21829, 22576, 22618, 28552, 35768, 43658, 45236, 57104, 60673, 71536, 87316, 90472, 121346, 174632, 180944, 192253, 242692, 349264, 371093, 384506, 485384, 742186, 769012, 938647, 970768, 1484372, 1538024, 1877294, 2968744, 3076048, 3754588, 5937488, 7509176, 15018352, 15956999, 31913998, 63827996, 127655992, 255311984]

約数ペア:

[(1, 255311984), (2, 127655992), (4, 63827996), (8, 31913998), (16, 15956999), (17, 15018352), (34, 7509176), (43, 5937488), (68, 3754588), (83, 3076048), (86, 2968744), (136, 1877294), (166, 1538024), (172, 1484372), (263, 970768), (272, 938647), (332, 769012), (344, 742186), (526, 485384), (664, 384506), (688, 371093), (731, 349264), (1052, 242692), (1328, 192253), (1411, 180944), (1462, 174632), (2104, 121346), (2822, 90472), (2924, 87316), (3569, 71536), (4208, 60673), (4471, 57104), (5644, 45236), (5848, 43658), (7138, 35768), (8942, 28552), (11288, 22618), (11309, 22576), (11696, 21829), (14276, 17884)]