209857440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 192

約数和(自身を含む): 719712000

約数和(自身を除く): 509854560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 199, 208, 240, 260, 312, 338, 390, 398, 416, 480, 507, 520, 597, 624, 676, 780, 796, 845, 995, 1014, 1040, 1194, 1248, 1352, 1560, 1592, 1690, 1990, 2028, 2080, 2197, 2388, 2535, 2587, 2704, 2985, 3120, 3184, 3380, 3980, 4056, 4394, 4776, 5070, 5174, 5408, 5970, 6240, 6368, 6591, 6760, 7761, 7960, 8112, 8788, 9552, 10140, 10348, 10985, 11940, 12935, 13182, 13520, 15522, 15920, 16224, 17576, 19104, 20280, 20696, 21970, 23880, 25870, 26364, 27040, 31044, 31840, 32955, 33631, 35152, 38805, 40560, 41392, 43940, 47760, 51740, 52728, 62088, 65910, 67262, 70304, 77610, 81120, 82784, 87880, 95520, 100893, 103480, 105456, 124176, 131820, 134524, 155220, 168155, 175760, 201786, 206960, 210912, 248352, 263640, 269048, 310440, 336310, 351520, 403572, 413920, 437203, 504465, 527280, 538096, 620880, 672620, 807144, 874406, 1008930, 1054560, 1076192, 1241760, 1311609, 1345240, 1614288, 1748812, 2017860, 2186015, 2623218, 2690480, 3228576, 3497624, 4035720, 4372030, 5246436, 5380960, 6558045, 6995248, 8071440, 8744060, 10492872, 13116090, 13990496, 16142880, 17488120, 20985744, 26232180, 34976240, 41971488, 52464360, 69952480, 104928720, 209857440]

約数ペア:

[(1, 209857440), (2, 104928720), (3, 69952480), (4, 52464360), (5, 41971488), (6, 34976240), (8, 26232180), (10, 20985744), (12, 17488120), (13, 16142880), (15, 13990496), (16, 13116090), (20, 10492872), (24, 8744060), (26, 8071440), (30, 6995248), (32, 6558045), (39, 5380960), (40, 5246436), (48, 4372030), (52, 4035720), (60, 3497624), (65, 3228576), (78, 2690480), (80, 2623218), (96, 2186015), (104, 2017860), (120, 1748812), (130, 1614288), (156, 1345240), (160, 1311609), (169, 1241760), (195, 1076192), (199, 1054560), (208, 1008930), (240, 874406), (260, 807144), (312, 672620), (338, 620880), (390, 538096), (398, 527280), (416, 504465), (480, 437203), (507, 413920), (520, 403572), (597, 351520), (624, 336310), (676, 310440), (780, 269048), (796, 263640), (845, 248352), (995, 210912), (1014, 206960), (1040, 201786), (1194, 175760), (1248, 168155), (1352, 155220), (1560, 134524), (1592, 131820), (1690, 124176), (1990, 105456), (2028, 103480), (2080, 100893), (2197, 95520), (2388, 87880), (2535, 82784), (2587, 81120), (2704, 77610), (2985, 70304), (3120, 67262), (3184, 65910), (3380, 62088), (3980, 52728), (4056, 51740), (4394, 47760), (4776, 43940), (5070, 41392), (5174, 40560), (5408, 38805), (5970, 35152), (6240, 33631), (6368, 32955), (6591, 31840), (6760, 31044), (7761, 27040), (7960, 26364), (8112, 25870), (8788, 23880), (9552, 21970), (10140, 20696), (10348, 20280), (10985, 19104), (11940, 17576), (12935, 16224), (13182, 15920), (13520, 15522)]