1280508320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2837}}^1$

素因数の和:2903

約数の個数: 192

約数和(自身を含む): 3844786176

約数和(自身を除く): 2564277856

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 160, 182, 208, 217, 224, 248, 260, 280, 310, 364, 403, 416, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 992, 1040, 1085, 1120, 1240, 1456, 1612, 1736, 1820, 2015, 2080, 2170, 2480, 2821, 2837, 2912, 3224, 3472, 3640, 4030, 4340, 4960, 5642, 5674, 6448, 6944, 7280, 8060, 8680, 11284, 11348, 12896, 14105, 14185, 14560, 16120, 17360, 19859, 22568, 22696, 28210, 28370, 32240, 34720, 36881, 39718, 45136, 45392, 56420, 56740, 64480, 73762, 79436, 87947, 90272, 90784, 99295, 112840, 113480, 147524, 158872, 175894, 184405, 198590, 225680, 226960, 258167, 295048, 317744, 351788, 368810, 397180, 439735, 451360, 453920, 516334, 590096, 615629, 635488, 703576, 737620, 794360, 879470, 1032668, 1143311, 1180192, 1231258, 1290835, 1407152, 1475240, 1588720, 1758940, 2065336, 2286622, 2462516, 2581670, 2814304, 2950480, 3078145, 3177440, 3517880, 4130672, 4573244, 4925032, 5163340, 5716555, 5900960, 6156290, 7035760, 8003177, 8261344, 9146488, 9850064, 10326680, 11433110, 12312580, 14071520, 16006354, 18292976, 19700128, 20653360, 22866220, 24625160, 32012708, 36585952, 40015885, 41306720, 45732440, 49250320, 64025416, 80031770, 91464880, 98500640, 128050832, 160063540, 182929760, 256101664, 320127080, 640254160, 1280508320]

約数ペア:

[(1, 1280508320), (2, 640254160), (4, 320127080), (5, 256101664), (7, 182929760), (8, 160063540), (10, 128050832), (13, 98500640), (14, 91464880), (16, 80031770), (20, 64025416), (26, 49250320), (28, 45732440), (31, 41306720), (32, 40015885), (35, 36585952), (40, 32012708), (52, 24625160), (56, 22866220), (62, 20653360), (65, 19700128), (70, 18292976), (80, 16006354), (91, 14071520), (104, 12312580), (112, 11433110), (124, 10326680), (130, 9850064), (140, 9146488), (155, 8261344), (160, 8003177), (182, 7035760), (208, 6156290), (217, 5900960), (224, 5716555), (248, 5163340), (260, 4925032), (280, 4573244), (310, 4130672), (364, 3517880), (403, 3177440), (416, 3078145), (434, 2950480), (455, 2814304), (496, 2581670), (520, 2462516), (560, 2286622), (620, 2065336), (728, 1758940), (806, 1588720), (868, 1475240), (910, 1407152), (992, 1290835), (1040, 1231258), (1085, 1180192), (1120, 1143311), (1240, 1032668), (1456, 879470), (1612, 794360), (1736, 737620), (1820, 703576), (2015, 635488), (2080, 615629), (2170, 590096), (2480, 516334), (2821, 453920), (2837, 451360), (2912, 439735), (3224, 397180), (3472, 368810), (3640, 351788), (4030, 317744), (4340, 295048), (4960, 258167), (5642, 226960), (5674, 225680), (6448, 198590), (6944, 184405), (7280, 175894), (8060, 158872), (8680, 147524), (11284, 113480), (11348, 112840), (12896, 99295), (14105, 90784), (14185, 90272), (14560, 87947), (16120, 79436), (17360, 73762), (19859, 64480), (22568, 56740), (22696, 56420), (28210, 45392), (28370, 45136), (32240, 39718), (34720, 36881)]