645815520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{811}}^1$

素因数の和:918

約数の個数: 288

約数和(自身を含む): 2553707520

約数和(自身を除く): 1907892000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 79, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 158, 160, 168, 180, 210, 224, 237, 240, 252, 280, 288, 315, 316, 336, 360, 395, 420, 474, 480, 504, 553, 560, 630, 632, 672, 711, 720, 790, 811, 840, 948, 1008, 1106, 1120, 1185, 1260, 1264, 1422, 1440, 1580, 1622, 1659, 1680, 1896, 2016, 2212, 2370, 2433, 2520, 2528, 2765, 2844, 3160, 3244, 3318, 3360, 3555, 3792, 4055, 4424, 4740, 4866, 4977, 5040, 5530, 5677, 5688, 6320, 6488, 6636, 7110, 7299, 7584, 8110, 8295, 8848, 9480, 9732, 9954, 10080, 11060, 11354, 11376, 12165, 12640, 12976, 13272, 14220, 14598, 16220, 16590, 17031, 17696, 18960, 19464, 19908, 22120, 22708, 22752, 24330, 24885, 25952, 26544, 28385, 28440, 29196, 32440, 33180, 34062, 36495, 37920, 38928, 39816, 44240, 45416, 48660, 49770, 51093, 53088, 56770, 56880, 58392, 64069, 64880, 66360, 68124, 72990, 77856, 79632, 85155, 88480, 90832, 97320, 99540, 102186, 113540, 113760, 116784, 128138, 129760, 132720, 136248, 145980, 159264, 170310, 181664, 192207, 194640, 199080, 204372, 227080, 233568, 255465, 256276, 265440, 272496, 291960, 320345, 340620, 384414, 389280, 398160, 408744, 448483, 454160, 510930, 512552, 544992, 576621, 583920, 640690, 681240, 768828, 796320, 817488, 896966, 908320, 961035, 1021860, 1025104, 1153242, 1167840, 1281380, 1345449, 1362480, 1537656, 1634976, 1793932, 1922070, 2043720, 2050208, 2242415, 2306484, 2562760, 2690898, 2724960, 2883105, 3075312, 3587864, 3844140, 4036347, 4087440, 4484830, 4612968, 5125520, 5381796, 5766210, 6150624, 6727245, 7175728, 7688280, 8072694, 8174880, 8969660, 9225936, 10251040, 10763592, 11532420, 13454490, 14351456, 15376560, 16145388, 17939320, 18451872, 20181735, 21527184, 23064840, 26908980, 30753120, 32290776, 35878640, 40363470, 43054368, 46129680, 53817960, 64581552, 71757280, 80726940, 92259360, 107635920, 129163104, 161453880, 215271840, 322907760, 645815520]

約数ペア:

[(1, 645815520), (2, 322907760), (3, 215271840), (4, 161453880), (5, 129163104), (6, 107635920), (7, 92259360), (8, 80726940), (9, 71757280), (10, 64581552), (12, 53817960), (14, 46129680), (15, 43054368), (16, 40363470), (18, 35878640), (20, 32290776), (21, 30753120), (24, 26908980), (28, 23064840), (30, 21527184), (32, 20181735), (35, 18451872), (36, 17939320), (40, 16145388), (42, 15376560), (45, 14351456), (48, 13454490), (56, 11532420), (60, 10763592), (63, 10251040), (70, 9225936), (72, 8969660), (79, 8174880), (80, 8072694), (84, 7688280), (90, 7175728), (96, 6727245), (105, 6150624), (112, 5766210), (120, 5381796), (126, 5125520), (140, 4612968), (144, 4484830), (158, 4087440), (160, 4036347), (168, 3844140), (180, 3587864), (210, 3075312), (224, 2883105), (237, 2724960), (240, 2690898), (252, 2562760), (280, 2306484), (288, 2242415), (315, 2050208), (316, 2043720), (336, 1922070), (360, 1793932), (395, 1634976), (420, 1537656), (474, 1362480), (480, 1345449), (504, 1281380), (553, 1167840), (560, 1153242), (630, 1025104), (632, 1021860), (672, 961035), (711, 908320), (720, 896966), (790, 817488), (811, 796320), (840, 768828), (948, 681240), (1008, 640690), (1106, 583920), (1120, 576621), (1185, 544992), (1260, 512552), (1264, 510930), (1422, 454160), (1440, 448483), (1580, 408744), (1622, 398160), (1659, 389280), (1680, 384414), (1896, 340620), (2016, 320345), (2212, 291960), (2370, 272496), (2433, 265440), (2520, 256276), (2528, 255465), (2765, 233568), (2844, 227080), (3160, 204372), (3244, 199080), (3318, 194640), (3360, 192207), (3555, 181664), (3792, 170310), (4055, 159264), (4424, 145980), (4740, 136248), (4866, 132720), (4977, 129760), (5040, 128138), (5530, 116784), (5677, 113760), (5688, 113540), (6320, 102186), (6488, 99540), (6636, 97320), (7110, 90832), (7299, 88480), (7584, 85155), (8110, 79632), (8295, 77856), (8848, 72990), (9480, 68124), (9732, 66360), (9954, 64880), (10080, 64069), (11060, 58392), (11354, 56880), (11376, 56770), (12165, 53088), (12640, 51093), (12976, 49770), (13272, 48660), (14220, 45416), (14598, 44240), (16220, 39816), (16590, 38928), (17031, 37920), (17696, 36495), (18960, 34062), (19464, 33180), (19908, 32440), (22120, 29196), (22708, 28440), (22752, 28385), (24330, 26544), (24885, 25952)]