256316400

素因数分解:

$2^4\times 3^7\times 5^2\times {\mathrm{293}}^1$

素因数の和:332

約数の個数: 240

約数和(自身を含む): 926711520

約数和(自身を除く): 670395120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 135, 144, 150, 162, 180, 200, 216, 225, 240, 243, 270, 293, 300, 324, 360, 400, 405, 432, 450, 486, 540, 586, 600, 648, 675, 720, 729, 810, 879, 900, 972, 1080, 1172, 1200, 1215, 1296, 1350, 1458, 1465, 1620, 1758, 1800, 1944, 2025, 2160, 2187, 2344, 2430, 2637, 2700, 2916, 2930, 3240, 3516, 3600, 3645, 3888, 4050, 4374, 4395, 4688, 4860, 5274, 5400, 5832, 5860, 6075, 6480, 7032, 7290, 7325, 7911, 8100, 8748, 8790, 9720, 10548, 10800, 10935, 11664, 11720, 12150, 13185, 14064, 14580, 14650, 15822, 16200, 17496, 17580, 18225, 19440, 21096, 21870, 21975, 23440, 23733, 24300, 26370, 29160, 29300, 31644, 32400, 34992, 35160, 36450, 39555, 42192, 43740, 43950, 47466, 48600, 52740, 54675, 58320, 58600, 63288, 65925, 70320, 71199, 72900, 79110, 87480, 87900, 94932, 97200, 105480, 109350, 117200, 118665, 126576, 131850, 142398, 145800, 158220, 174960, 175800, 189864, 197775, 210960, 213597, 218700, 237330, 263700, 284796, 291600, 316440, 351600, 355995, 379728, 395550, 427194, 437400, 474660, 527400, 569592, 593325, 632880, 640791, 711990, 791100, 854388, 874800, 949320, 1054800, 1067985, 1139184, 1186650, 1281582, 1423980, 1582200, 1708776, 1779975, 1898640, 2135970, 2373300, 2563164, 2847960, 3164400, 3203955, 3417552, 3559950, 4271940, 4746600, 5126328, 5339925, 5695920, 6407910, 7119900, 8543880, 9493200, 10252656, 10679850, 12815820, 14239800, 16019775, 17087760, 21359700, 25631640, 28479600, 32039550, 42719400, 51263280, 64079100, 85438800, 128158200, 256316400]

約数ペア:

[(1, 256316400), (2, 128158200), (3, 85438800), (4, 64079100), (5, 51263280), (6, 42719400), (8, 32039550), (9, 28479600), (10, 25631640), (12, 21359700), (15, 17087760), (16, 16019775), (18, 14239800), (20, 12815820), (24, 10679850), (25, 10252656), (27, 9493200), (30, 8543880), (36, 7119900), (40, 6407910), (45, 5695920), (48, 5339925), (50, 5126328), (54, 4746600), (60, 4271940), (72, 3559950), (75, 3417552), (80, 3203955), (81, 3164400), (90, 2847960), (100, 2563164), (108, 2373300), (120, 2135970), (135, 1898640), (144, 1779975), (150, 1708776), (162, 1582200), (180, 1423980), (200, 1281582), (216, 1186650), (225, 1139184), (240, 1067985), (243, 1054800), (270, 949320), (293, 874800), (300, 854388), (324, 791100), (360, 711990), (400, 640791), (405, 632880), (432, 593325), (450, 569592), (486, 527400), (540, 474660), (586, 437400), (600, 427194), (648, 395550), (675, 379728), (720, 355995), (729, 351600), (810, 316440), (879, 291600), (900, 284796), (972, 263700), (1080, 237330), (1172, 218700), (1200, 213597), (1215, 210960), (1296, 197775), (1350, 189864), (1458, 175800), (1465, 174960), (1620, 158220), (1758, 145800), (1800, 142398), (1944, 131850), (2025, 126576), (2160, 118665), (2187, 117200), (2344, 109350), (2430, 105480), (2637, 97200), (2700, 94932), (2916, 87900), (2930, 87480), (3240, 79110), (3516, 72900), (3600, 71199), (3645, 70320), (3888, 65925), (4050, 63288), (4374, 58600), (4395, 58320), (4688, 54675), (4860, 52740), (5274, 48600), (5400, 47466), (5832, 43950), (5860, 43740), (6075, 42192), (6480, 39555), (7032, 36450), (7290, 35160), (7325, 34992), (7911, 32400), (8100, 31644), (8748, 29300), (8790, 29160), (9720, 26370), (10548, 24300), (10800, 23733), (10935, 23440), (11664, 21975), (11720, 21870), (12150, 21096), (13185, 19440), (14064, 18225), (14580, 17580), (14650, 17496), (15822, 16200)]