257906160

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{859}}^1$

素因数の和:1020

約数の個数: 160

約数和(自身を含む): 895776000

約数和(自身を除く): 637869840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 139, 144, 180, 216, 240, 270, 278, 360, 417, 432, 540, 556, 695, 720, 834, 859, 1080, 1112, 1251, 1390, 1668, 1718, 2085, 2160, 2224, 2502, 2577, 2780, 3336, 3436, 3753, 4170, 4295, 5004, 5154, 5560, 6255, 6672, 6872, 7506, 7731, 8340, 8590, 10008, 10308, 11120, 12510, 12885, 13744, 15012, 15462, 16680, 17180, 18765, 20016, 20616, 23193, 25020, 25770, 30024, 30924, 33360, 34360, 37530, 38655, 41232, 46386, 50040, 51540, 60048, 61848, 68720, 75060, 77310, 92772, 100080, 103080, 115965, 119401, 123696, 150120, 154620, 185544, 206160, 231930, 238802, 300240, 309240, 358203, 371088, 463860, 477604, 597005, 618480, 716406, 927720, 955208, 1074609, 1194010, 1432812, 1791015, 1855440, 1910416, 2149218, 2388020, 2865624, 3223827, 3582030, 4298436, 4776040, 5373045, 5731248, 6447654, 7164060, 8596872, 9552080, 10746090, 12895308, 14328120, 16119135, 17193744, 21492180, 25790616, 28656240, 32238270, 42984360, 51581232, 64476540, 85968720, 128953080, 257906160]

約数ペア:

[(1, 257906160), (2, 128953080), (3, 85968720), (4, 64476540), (5, 51581232), (6, 42984360), (8, 32238270), (9, 28656240), (10, 25790616), (12, 21492180), (15, 17193744), (16, 16119135), (18, 14328120), (20, 12895308), (24, 10746090), (27, 9552080), (30, 8596872), (36, 7164060), (40, 6447654), (45, 5731248), (48, 5373045), (54, 4776040), (60, 4298436), (72, 3582030), (80, 3223827), (90, 2865624), (108, 2388020), (120, 2149218), (135, 1910416), (139, 1855440), (144, 1791015), (180, 1432812), (216, 1194010), (240, 1074609), (270, 955208), (278, 927720), (360, 716406), (417, 618480), (432, 597005), (540, 477604), (556, 463860), (695, 371088), (720, 358203), (834, 309240), (859, 300240), (1080, 238802), (1112, 231930), (1251, 206160), (1390, 185544), (1668, 154620), (1718, 150120), (2085, 123696), (2160, 119401), (2224, 115965), (2502, 103080), (2577, 100080), (2780, 92772), (3336, 77310), (3436, 75060), (3753, 68720), (4170, 61848), (4295, 60048), (5004, 51540), (5154, 50040), (5560, 46386), (6255, 41232), (6672, 38655), (6872, 37530), (7506, 34360), (7731, 33360), (8340, 30924), (8590, 30024), (10008, 25770), (10308, 25020), (11120, 23193), (12510, 20616), (12885, 20016), (13744, 18765), (15012, 17180), (15462, 16680)]