256359600

素因数分解:

$2^4\times 3^3\times 5^2\times 7^1\times {\mathrm{3391}}^1$

素因数の和:3425

約数の個数: 240

約数和(自身を含む): 1043107840

約数和(自身を除く): 786748240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 108, 112, 120, 126, 135, 140, 144, 150, 168, 175, 180, 189, 200, 210, 216, 225, 240, 252, 270, 280, 300, 315, 336, 350, 360, 378, 400, 420, 432, 450, 504, 525, 540, 560, 600, 630, 675, 700, 720, 756, 840, 900, 945, 1008, 1050, 1080, 1200, 1260, 1350, 1400, 1512, 1575, 1680, 1800, 1890, 2100, 2160, 2520, 2700, 2800, 3024, 3150, 3391, 3600, 3780, 4200, 4725, 5040, 5400, 6300, 6782, 7560, 8400, 9450, 10173, 10800, 12600, 13564, 15120, 16955, 18900, 20346, 23737, 25200, 27128, 30519, 33910, 37800, 40692, 47474, 50865, 54256, 61038, 67820, 71211, 75600, 81384, 84775, 91557, 94948, 101730, 118685, 122076, 135640, 142422, 152595, 162768, 169550, 183114, 189896, 203460, 213633, 237370, 244152, 254325, 271280, 284844, 305190, 339100, 356055, 366228, 379792, 406920, 427266, 457785, 474740, 488304, 508650, 569688, 593425, 610380, 640899, 678200, 712110, 732456, 762975, 813840, 854532, 915570, 949480, 1017300, 1068165, 1139376, 1186850, 1220760, 1281798, 1356400, 1424220, 1464912, 1525950, 1709064, 1780275, 1831140, 1898960, 2034600, 2136330, 2288925, 2373700, 2441520, 2563596, 2848440, 3051900, 3204495, 3418128, 3560550, 3662280, 4069200, 4272660, 4577850, 4747400, 5127192, 5340825, 5696880, 6103800, 6408990, 7121100, 7324560, 8545320, 9155700, 9494800, 10254384, 10681650, 12207600, 12817980, 14242200, 16022475, 17090640, 18311400, 21363300, 25635960, 28484400, 32044950, 36622800, 42726600, 51271920, 64089900, 85453200, 128179800, 256359600]

約数ペア:

[(1, 256359600), (2, 128179800), (3, 85453200), (4, 64089900), (5, 51271920), (6, 42726600), (7, 36622800), (8, 32044950), (9, 28484400), (10, 25635960), (12, 21363300), (14, 18311400), (15, 17090640), (16, 16022475), (18, 14242200), (20, 12817980), (21, 12207600), (24, 10681650), (25, 10254384), (27, 9494800), (28, 9155700), (30, 8545320), (35, 7324560), (36, 7121100), (40, 6408990), (42, 6103800), (45, 5696880), (48, 5340825), (50, 5127192), (54, 4747400), (56, 4577850), (60, 4272660), (63, 4069200), (70, 3662280), (72, 3560550), (75, 3418128), (80, 3204495), (84, 3051900), (90, 2848440), (100, 2563596), (105, 2441520), (108, 2373700), (112, 2288925), (120, 2136330), (126, 2034600), (135, 1898960), (140, 1831140), (144, 1780275), (150, 1709064), (168, 1525950), (175, 1464912), (180, 1424220), (189, 1356400), (200, 1281798), (210, 1220760), (216, 1186850), (225, 1139376), (240, 1068165), (252, 1017300), (270, 949480), (280, 915570), (300, 854532), (315, 813840), (336, 762975), (350, 732456), (360, 712110), (378, 678200), (400, 640899), (420, 610380), (432, 593425), (450, 569688), (504, 508650), (525, 488304), (540, 474740), (560, 457785), (600, 427266), (630, 406920), (675, 379792), (700, 366228), (720, 356055), (756, 339100), (840, 305190), (900, 284844), (945, 271280), (1008, 254325), (1050, 244152), (1080, 237370), (1200, 213633), (1260, 203460), (1350, 189896), (1400, 183114), (1512, 169550), (1575, 162768), (1680, 152595), (1800, 142422), (1890, 135640), (2100, 122076), (2160, 118685), (2520, 101730), (2700, 94948), (2800, 91557), (3024, 84775), (3150, 81384), (3391, 75600), (3600, 71211), (3780, 67820), (4200, 61038), (4725, 54256), (5040, 50865), (5400, 47474), (6300, 40692), (6782, 37800), (7560, 33910), (8400, 30519), (9450, 27128), (10173, 25200), (10800, 23737), (12600, 20346), (13564, 18900), (15120, 16955)]