642975840

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^2$

素因数の和:251

約数の個数: 288

約数和(自身を含む): 2446385760

約数和(自身を除く): 1803409920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 107, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 214, 216, 234, 240, 260, 270, 288, 312, 321, 351, 360, 390, 416, 428, 432, 468, 480, 520, 535, 540, 585, 624, 642, 702, 720, 780, 856, 864, 936, 963, 1040, 1070, 1080, 1170, 1248, 1284, 1391, 1404, 1440, 1560, 1605, 1712, 1755, 1872, 1926, 2080, 2140, 2160, 2340, 2568, 2782, 2808, 2889, 3120, 3210, 3424, 3510, 3744, 3852, 4173, 4280, 4320, 4680, 4815, 5136, 5564, 5616, 5778, 6240, 6420, 6955, 7020, 7704, 8346, 8560, 9360, 9630, 10272, 11128, 11232, 11449, 11556, 12519, 12840, 13910, 14040, 14445, 15408, 16692, 17120, 18720, 19260, 20865, 22256, 22898, 23112, 25038, 25680, 27820, 28080, 28890, 30816, 33384, 34347, 37557, 38520, 41730, 44512, 45796, 46224, 50076, 51360, 55640, 56160, 57245, 57780, 62595, 66768, 68694, 75114, 77040, 83460, 91592, 92448, 100152, 103041, 111280, 114490, 115560, 125190, 133536, 137388, 148837, 150228, 154080, 166920, 171735, 183184, 187785, 200304, 206082, 222560, 228980, 231120, 250380, 274776, 297674, 300456, 309123, 333840, 343470, 366368, 375570, 400608, 412164, 446511, 457960, 462240, 500760, 515205, 549552, 595348, 600912, 618246, 667680, 686940, 744185, 751140, 824328, 893022, 915920, 1001520, 1030410, 1099104, 1190696, 1201824, 1236492, 1339533, 1373880, 1488370, 1502280, 1545615, 1648656, 1786044, 1831840, 2003040, 2060820, 2232555, 2381392, 2472984, 2679066, 2747760, 2976740, 3004560, 3091230, 3297312, 3572088, 4018599, 4121640, 4465110, 4762784, 4945968, 5358132, 5495520, 5953480, 6009120, 6182460, 6697665, 7144176, 8037198, 8243280, 8930220, 9891936, 10716264, 11906960, 12364920, 13395330, 14288352, 16074396, 16486560, 17860440, 20092995, 21432528, 23813920, 24729840, 26790660, 32148792, 35720880, 40185990, 42865056, 49459680, 53581320, 64297584, 71441760, 80371980, 107162640, 128595168, 160743960, 214325280, 321487920, 642975840]

約数ペア:

[(1, 642975840), (2, 321487920), (3, 214325280), (4, 160743960), (5, 128595168), (6, 107162640), (8, 80371980), (9, 71441760), (10, 64297584), (12, 53581320), (13, 49459680), (15, 42865056), (16, 40185990), (18, 35720880), (20, 32148792), (24, 26790660), (26, 24729840), (27, 23813920), (30, 21432528), (32, 20092995), (36, 17860440), (39, 16486560), (40, 16074396), (45, 14288352), (48, 13395330), (52, 12364920), (54, 11906960), (60, 10716264), (65, 9891936), (72, 8930220), (78, 8243280), (80, 8037198), (90, 7144176), (96, 6697665), (104, 6182460), (107, 6009120), (108, 5953480), (117, 5495520), (120, 5358132), (130, 4945968), (135, 4762784), (144, 4465110), (156, 4121640), (160, 4018599), (180, 3572088), (195, 3297312), (208, 3091230), (214, 3004560), (216, 2976740), (234, 2747760), (240, 2679066), (260, 2472984), (270, 2381392), (288, 2232555), (312, 2060820), (321, 2003040), (351, 1831840), (360, 1786044), (390, 1648656), (416, 1545615), (428, 1502280), (432, 1488370), (468, 1373880), (480, 1339533), (520, 1236492), (535, 1201824), (540, 1190696), (585, 1099104), (624, 1030410), (642, 1001520), (702, 915920), (720, 893022), (780, 824328), (856, 751140), (864, 744185), (936, 686940), (963, 667680), (1040, 618246), (1070, 600912), (1080, 595348), (1170, 549552), (1248, 515205), (1284, 500760), (1391, 462240), (1404, 457960), (1440, 446511), (1560, 412164), (1605, 400608), (1712, 375570), (1755, 366368), (1872, 343470), (1926, 333840), (2080, 309123), (2140, 300456), (2160, 297674), (2340, 274776), (2568, 250380), (2782, 231120), (2808, 228980), (2889, 222560), (3120, 206082), (3210, 200304), (3424, 187785), (3510, 183184), (3744, 171735), (3852, 166920), (4173, 154080), (4280, 150228), (4320, 148837), (4680, 137388), (4815, 133536), (5136, 125190), (5564, 115560), (5616, 114490), (5778, 111280), (6240, 103041), (6420, 100152), (6955, 92448), (7020, 91592), (7704, 83460), (8346, 77040), (8560, 75114), (9360, 68694), (9630, 66768), (10272, 62595), (11128, 57780), (11232, 57245), (11449, 56160), (11556, 55640), (12519, 51360), (12840, 50076), (13910, 46224), (14040, 45796), (14445, 44512), (15408, 41730), (16692, 38520), (17120, 37557), (18720, 34347), (19260, 33384), (20865, 30816), (22256, 28890), (22898, 28080), (23112, 27820), (25038, 25680)]