281808800

素因数分解:

$2^5\times 5^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 874944000

約数和(自身を除く): 593135200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 49, 50, 52, 56, 65, 70, 79, 80, 91, 98, 100, 104, 112, 130, 140, 158, 160, 175, 182, 196, 200, 208, 224, 245, 260, 280, 316, 325, 343, 350, 364, 392, 395, 400, 416, 455, 490, 520, 553, 560, 632, 637, 650, 686, 700, 728, 784, 790, 800, 910, 980, 1027, 1040, 1106, 1120, 1225, 1264, 1274, 1300, 1372, 1400, 1456, 1568, 1580, 1715, 1820, 1960, 1975, 2054, 2080, 2212, 2275, 2450, 2528, 2548, 2600, 2744, 2765, 2800, 2912, 3160, 3185, 3430, 3640, 3871, 3920, 3950, 4108, 4424, 4459, 4550, 4900, 5096, 5135, 5200, 5488, 5530, 5600, 6320, 6370, 6860, 7189, 7280, 7742, 7840, 7900, 8216, 8575, 8848, 8918, 9100, 9800, 10192, 10270, 10400, 10976, 11060, 12640, 12740, 13720, 13825, 14378, 14560, 15484, 15800, 15925, 16432, 17150, 17696, 17836, 18200, 19355, 19600, 20384, 20540, 22120, 22295, 25480, 25675, 27097, 27440, 27650, 28756, 30968, 31600, 31850, 32864, 34300, 35672, 35945, 36400, 38710, 39200, 41080, 44240, 44590, 50323, 50960, 51350, 54194, 54880, 55300, 57512, 61936, 63200, 63700, 68600, 71344, 71890, 72800, 77420, 82160, 88480, 89180, 96775, 100646, 101920, 102700, 108388, 110600, 111475, 115024, 123872, 127400, 135485, 137200, 142688, 143780, 154840, 164320, 178360, 179725, 193550, 201292, 205400, 216776, 221200, 222950, 230048, 251615, 254800, 270970, 274400, 287560, 309680, 352261, 356720, 359450, 387100, 402584, 410800, 433552, 442400, 445900, 503230, 509600, 541940, 575120, 619360, 677425, 704522, 713440, 718900, 774200, 805168, 821600, 867104, 891800, 1006460, 1083880, 1150240, 1258075, 1354850, 1409044, 1437800, 1548400, 1610336, 1761305, 1783600, 2012920, 2167760, 2516150, 2709700, 2818088, 2875600, 3096800, 3522610, 3567200, 4025840, 4335520, 5032300, 5419400, 5636176, 5751200, 7045220, 8051680, 8806525, 10064600, 10838800, 11272352, 14090440, 17613050, 20129200, 21677600, 28180880, 35226100, 40258400, 56361760, 70452200, 140904400, 281808800]

約数ペア:

[(1, 281808800), (2, 140904400), (4, 70452200), (5, 56361760), (7, 40258400), (8, 35226100), (10, 28180880), (13, 21677600), (14, 20129200), (16, 17613050), (20, 14090440), (25, 11272352), (26, 10838800), (28, 10064600), (32, 8806525), (35, 8051680), (40, 7045220), (49, 5751200), (50, 5636176), (52, 5419400), (56, 5032300), (65, 4335520), (70, 4025840), (79, 3567200), (80, 3522610), (91, 3096800), (98, 2875600), (100, 2818088), (104, 2709700), (112, 2516150), (130, 2167760), (140, 2012920), (158, 1783600), (160, 1761305), (175, 1610336), (182, 1548400), (196, 1437800), (200, 1409044), (208, 1354850), (224, 1258075), (245, 1150240), (260, 1083880), (280, 1006460), (316, 891800), (325, 867104), (343, 821600), (350, 805168), (364, 774200), (392, 718900), (395, 713440), (400, 704522), (416, 677425), (455, 619360), (490, 575120), (520, 541940), (553, 509600), (560, 503230), (632, 445900), (637, 442400), (650, 433552), (686, 410800), (700, 402584), (728, 387100), (784, 359450), (790, 356720), (800, 352261), (910, 309680), (980, 287560), (1027, 274400), (1040, 270970), (1106, 254800), (1120, 251615), (1225, 230048), (1264, 222950), (1274, 221200), (1300, 216776), (1372, 205400), (1400, 201292), (1456, 193550), (1568, 179725), (1580, 178360), (1715, 164320), (1820, 154840), (1960, 143780), (1975, 142688), (2054, 137200), (2080, 135485), (2212, 127400), (2275, 123872), (2450, 115024), (2528, 111475), (2548, 110600), (2600, 108388), (2744, 102700), (2765, 101920), (2800, 100646), (2912, 96775), (3160, 89180), (3185, 88480), (3430, 82160), (3640, 77420), (3871, 72800), (3920, 71890), (3950, 71344), (4108, 68600), (4424, 63700), (4459, 63200), (4550, 61936), (4900, 57512), (5096, 55300), (5135, 54880), (5200, 54194), (5488, 51350), (5530, 50960), (5600, 50323), (6320, 44590), (6370, 44240), (6860, 41080), (7189, 39200), (7280, 38710), (7742, 36400), (7840, 35945), (7900, 35672), (8216, 34300), (8575, 32864), (8848, 31850), (8918, 31600), (9100, 30968), (9800, 28756), (10192, 27650), (10270, 27440), (10400, 27097), (10976, 25675), (11060, 25480), (12640, 22295), (12740, 22120), (13720, 20540), (13825, 20384), (14378, 19600), (14560, 19355), (15484, 18200), (15800, 17836), (15925, 17696), (16432, 17150)]