209439720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 288

約数和(自身を含む): 819486720

約数和(自身を除く): 610047000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 49, 56, 60, 62, 63, 70, 72, 84, 90, 93, 98, 105, 120, 124, 126, 140, 147, 155, 168, 180, 186, 196, 210, 217, 245, 248, 252, 279, 280, 294, 310, 315, 360, 372, 383, 392, 420, 434, 441, 465, 490, 504, 558, 588, 620, 630, 651, 735, 744, 766, 840, 868, 882, 930, 980, 1085, 1116, 1149, 1176, 1240, 1260, 1302, 1395, 1470, 1519, 1532, 1736, 1764, 1860, 1915, 1953, 1960, 2170, 2205, 2232, 2298, 2520, 2604, 2681, 2790, 2940, 3038, 3064, 3255, 3447, 3528, 3720, 3830, 3906, 4340, 4410, 4557, 4596, 5208, 5362, 5580, 5745, 5880, 6076, 6510, 6894, 7595, 7660, 7812, 8043, 8680, 8820, 9114, 9192, 9765, 10724, 11160, 11490, 11873, 12152, 13020, 13405, 13671, 13788, 15190, 15320, 15624, 16086, 17235, 17640, 18228, 18767, 19530, 21448, 22785, 22980, 23746, 24129, 26040, 26810, 27342, 27576, 30380, 32172, 34470, 35619, 36456, 37534, 39060, 40215, 45570, 45960, 47492, 48258, 53620, 54684, 56301, 59365, 60760, 64344, 68355, 68940, 71238, 75068, 78120, 80430, 83111, 91140, 93835, 94984, 96516, 106857, 107240, 109368, 112602, 118730, 120645, 136710, 137880, 142476, 150136, 160860, 166222, 168903, 178095, 182280, 187670, 193032, 213714, 225204, 237460, 241290, 249333, 273420, 281505, 284952, 321720, 332444, 337806, 356190, 375340, 415555, 427428, 450408, 474920, 482580, 498666, 534285, 546840, 563010, 581777, 664888, 675612, 712380, 747999, 750680, 831110, 844515, 854856, 965160, 997332, 1068570, 1126020, 1163554, 1246665, 1351224, 1424760, 1495998, 1662220, 1689030, 1745331, 1994664, 2137140, 2252040, 2327108, 2493330, 2908885, 2991996, 3324440, 3378060, 3490662, 3739995, 4274280, 4654216, 4986660, 5235993, 5817770, 5983992, 6756120, 6981324, 7479990, 8726655, 9973320, 10471986, 11635540, 13962648, 14959980, 17453310, 20943972, 23271080, 26179965, 29919960, 34906620, 41887944, 52359930, 69813240, 104719860, 209439720]

約数ペア:

[(1, 209439720), (2, 104719860), (3, 69813240), (4, 52359930), (5, 41887944), (6, 34906620), (7, 29919960), (8, 26179965), (9, 23271080), (10, 20943972), (12, 17453310), (14, 14959980), (15, 13962648), (18, 11635540), (20, 10471986), (21, 9973320), (24, 8726655), (28, 7479990), (30, 6981324), (31, 6756120), (35, 5983992), (36, 5817770), (40, 5235993), (42, 4986660), (45, 4654216), (49, 4274280), (56, 3739995), (60, 3490662), (62, 3378060), (63, 3324440), (70, 2991996), (72, 2908885), (84, 2493330), (90, 2327108), (93, 2252040), (98, 2137140), (105, 1994664), (120, 1745331), (124, 1689030), (126, 1662220), (140, 1495998), (147, 1424760), (155, 1351224), (168, 1246665), (180, 1163554), (186, 1126020), (196, 1068570), (210, 997332), (217, 965160), (245, 854856), (248, 844515), (252, 831110), (279, 750680), (280, 747999), (294, 712380), (310, 675612), (315, 664888), (360, 581777), (372, 563010), (383, 546840), (392, 534285), (420, 498666), (434, 482580), (441, 474920), (465, 450408), (490, 427428), (504, 415555), (558, 375340), (588, 356190), (620, 337806), (630, 332444), (651, 321720), (735, 284952), (744, 281505), (766, 273420), (840, 249333), (868, 241290), (882, 237460), (930, 225204), (980, 213714), (1085, 193032), (1116, 187670), (1149, 182280), (1176, 178095), (1240, 168903), (1260, 166222), (1302, 160860), (1395, 150136), (1470, 142476), (1519, 137880), (1532, 136710), (1736, 120645), (1764, 118730), (1860, 112602), (1915, 109368), (1953, 107240), (1960, 106857), (2170, 96516), (2205, 94984), (2232, 93835), (2298, 91140), (2520, 83111), (2604, 80430), (2681, 78120), (2790, 75068), (2940, 71238), (3038, 68940), (3064, 68355), (3255, 64344), (3447, 60760), (3528, 59365), (3720, 56301), (3830, 54684), (3906, 53620), (4340, 48258), (4410, 47492), (4557, 45960), (4596, 45570), (5208, 40215), (5362, 39060), (5580, 37534), (5745, 36456), (5880, 35619), (6076, 34470), (6510, 32172), (6894, 30380), (7595, 27576), (7660, 27342), (7812, 26810), (8043, 26040), (8680, 24129), (8820, 23746), (9114, 22980), (9192, 22785), (9765, 21448), (10724, 19530), (11160, 18767), (11490, 18228), (11873, 17640), (12152, 17235), (13020, 16086), (13405, 15624), (13671, 15320), (13788, 15190)]