257222520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 256

約数和(自身を含む): 907804800

約数和(自身を除く): 650582280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 41, 45, 54, 60, 72, 74, 82, 90, 108, 111, 120, 123, 135, 148, 157, 164, 180, 185, 205, 216, 222, 246, 270, 296, 314, 328, 333, 360, 369, 370, 410, 444, 471, 492, 540, 555, 615, 628, 666, 738, 740, 785, 820, 888, 942, 984, 999, 1080, 1107, 1110, 1230, 1256, 1332, 1413, 1476, 1480, 1517, 1570, 1640, 1665, 1845, 1884, 1998, 2214, 2220, 2355, 2460, 2664, 2826, 2952, 3034, 3140, 3330, 3690, 3768, 3996, 4239, 4428, 4440, 4551, 4710, 4920, 4995, 5535, 5652, 5809, 6068, 6280, 6437, 6660, 7065, 7380, 7585, 7992, 8478, 8856, 9102, 9420, 9990, 11070, 11304, 11618, 12136, 12874, 13320, 13653, 14130, 14760, 15170, 16956, 17427, 18204, 18840, 19311, 19980, 21195, 22140, 22755, 23236, 25748, 27306, 28260, 29045, 30340, 32185, 33912, 34854, 36408, 38622, 39960, 40959, 42390, 44280, 45510, 46472, 51496, 52281, 54612, 56520, 57933, 58090, 60680, 64370, 68265, 69708, 77244, 81918, 84780, 87135, 91020, 96555, 104562, 109224, 115866, 116180, 128740, 136530, 139416, 154488, 156843, 163836, 169560, 173799, 174270, 182040, 193110, 204795, 209124, 231732, 232360, 238169, 257480, 261405, 273060, 289665, 313686, 327672, 347598, 348540, 386220, 409590, 418248, 463464, 476338, 522810, 546120, 579330, 627372, 695196, 697080, 714507, 772440, 784215, 819180, 868995, 952676, 1045620, 1158660, 1190845, 1254744, 1390392, 1429014, 1568430, 1638360, 1737990, 1905352, 2091240, 2143521, 2317320, 2381690, 2858028, 3136860, 3475980, 3572535, 4287042, 4763380, 5716056, 6273720, 6430563, 6951960, 7145070, 8574084, 9526760, 10717605, 12861126, 14290140, 17148168, 21435210, 25722252, 28580280, 32152815, 42870420, 51444504, 64305630, 85740840, 128611260, 257222520]

約数ペア:

[(1, 257222520), (2, 128611260), (3, 85740840), (4, 64305630), (5, 51444504), (6, 42870420), (8, 32152815), (9, 28580280), (10, 25722252), (12, 21435210), (15, 17148168), (18, 14290140), (20, 12861126), (24, 10717605), (27, 9526760), (30, 8574084), (36, 7145070), (37, 6951960), (40, 6430563), (41, 6273720), (45, 5716056), (54, 4763380), (60, 4287042), (72, 3572535), (74, 3475980), (82, 3136860), (90, 2858028), (108, 2381690), (111, 2317320), (120, 2143521), (123, 2091240), (135, 1905352), (148, 1737990), (157, 1638360), (164, 1568430), (180, 1429014), (185, 1390392), (205, 1254744), (216, 1190845), (222, 1158660), (246, 1045620), (270, 952676), (296, 868995), (314, 819180), (328, 784215), (333, 772440), (360, 714507), (369, 697080), (370, 695196), (410, 627372), (444, 579330), (471, 546120), (492, 522810), (540, 476338), (555, 463464), (615, 418248), (628, 409590), (666, 386220), (738, 348540), (740, 347598), (785, 327672), (820, 313686), (888, 289665), (942, 273060), (984, 261405), (999, 257480), (1080, 238169), (1107, 232360), (1110, 231732), (1230, 209124), (1256, 204795), (1332, 193110), (1413, 182040), (1476, 174270), (1480, 173799), (1517, 169560), (1570, 163836), (1640, 156843), (1665, 154488), (1845, 139416), (1884, 136530), (1998, 128740), (2214, 116180), (2220, 115866), (2355, 109224), (2460, 104562), (2664, 96555), (2826, 91020), (2952, 87135), (3034, 84780), (3140, 81918), (3330, 77244), (3690, 69708), (3768, 68265), (3996, 64370), (4239, 60680), (4428, 58090), (4440, 57933), (4551, 56520), (4710, 54612), (4920, 52281), (4995, 51496), (5535, 46472), (5652, 45510), (5809, 44280), (6068, 42390), (6280, 40959), (6437, 39960), (6660, 38622), (7065, 36408), (7380, 34854), (7585, 33912), (7992, 32185), (8478, 30340), (8856, 29045), (9102, 28260), (9420, 27306), (9990, 25748), (11070, 23236), (11304, 22755), (11618, 22140), (12136, 21195), (12874, 19980), (13320, 19311), (13653, 18840), (14130, 18204), (14760, 17427), (15170, 16956)]