638219520

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:402

約数の個数: 288

約数和(自身を含む): 2310537600

約数和(自身を除く): 1672318080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 59, 60, 64, 72, 80, 90, 96, 108, 118, 120, 128, 135, 144, 160, 177, 180, 192, 216, 236, 240, 256, 270, 288, 295, 313, 320, 354, 360, 384, 432, 472, 480, 531, 540, 576, 590, 626, 640, 708, 720, 768, 864, 885, 939, 944, 960, 1062, 1080, 1152, 1180, 1252, 1280, 1416, 1440, 1565, 1593, 1728, 1770, 1878, 1888, 1920, 2124, 2160, 2304, 2360, 2504, 2655, 2817, 2832, 2880, 3130, 3186, 3456, 3540, 3756, 3776, 3840, 4248, 4320, 4695, 4720, 5008, 5310, 5634, 5664, 5760, 6260, 6372, 6912, 7080, 7512, 7552, 7965, 8451, 8496, 8640, 9390, 9440, 10016, 10620, 11268, 11328, 11520, 12520, 12744, 14085, 14160, 15024, 15104, 15930, 16902, 16992, 17280, 18467, 18780, 18880, 20032, 21240, 22536, 22656, 25040, 25488, 28170, 28320, 30048, 31860, 33804, 33984, 34560, 36934, 37560, 37760, 40064, 42255, 42480, 45072, 45312, 50080, 50976, 55401, 56340, 56640, 60096, 63720, 67608, 67968, 73868, 75120, 75520, 80128, 84510, 84960, 90144, 92335, 100160, 101952, 110802, 112680, 113280, 120192, 127440, 135216, 135936, 147736, 150240, 166203, 169020, 169920, 180288, 184670, 200320, 203904, 221604, 225360, 226560, 240384, 254880, 270432, 277005, 295472, 300480, 332406, 338040, 339840, 360576, 369340, 400640, 407808, 443208, 450720, 498609, 509760, 540864, 554010, 590944, 600960, 664812, 676080, 679680, 721152, 738680, 831015, 886416, 901440, 997218, 1019520, 1081728, 1108020, 1181888, 1201920, 1329624, 1352160, 1477360, 1662030, 1772832, 1802880, 1994436, 2039040, 2163456, 2216040, 2363776, 2493045, 2659248, 2704320, 2954720, 3324060, 3545664, 3605760, 3988872, 4432080, 4727552, 4986090, 5318496, 5408640, 5909440, 6648120, 7091328, 7977744, 8864160, 9972180, 10636992, 10817280, 11818880, 13296240, 14182656, 15955488, 17728320, 19944360, 21273984, 23637760, 26592480, 31910976, 35456640, 39888720, 42547968, 53184960, 63821952, 70913280, 79777440, 106369920, 127643904, 159554880, 212739840, 319109760, 638219520]

約数ペア:

[(1, 638219520), (2, 319109760), (3, 212739840), (4, 159554880), (5, 127643904), (6, 106369920), (8, 79777440), (9, 70913280), (10, 63821952), (12, 53184960), (15, 42547968), (16, 39888720), (18, 35456640), (20, 31910976), (24, 26592480), (27, 23637760), (30, 21273984), (32, 19944360), (36, 17728320), (40, 15955488), (45, 14182656), (48, 13296240), (54, 11818880), (59, 10817280), (60, 10636992), (64, 9972180), (72, 8864160), (80, 7977744), (90, 7091328), (96, 6648120), (108, 5909440), (118, 5408640), (120, 5318496), (128, 4986090), (135, 4727552), (144, 4432080), (160, 3988872), (177, 3605760), (180, 3545664), (192, 3324060), (216, 2954720), (236, 2704320), (240, 2659248), (256, 2493045), (270, 2363776), (288, 2216040), (295, 2163456), (313, 2039040), (320, 1994436), (354, 1802880), (360, 1772832), (384, 1662030), (432, 1477360), (472, 1352160), (480, 1329624), (531, 1201920), (540, 1181888), (576, 1108020), (590, 1081728), (626, 1019520), (640, 997218), (708, 901440), (720, 886416), (768, 831015), (864, 738680), (885, 721152), (939, 679680), (944, 676080), (960, 664812), (1062, 600960), (1080, 590944), (1152, 554010), (1180, 540864), (1252, 509760), (1280, 498609), (1416, 450720), (1440, 443208), (1565, 407808), (1593, 400640), (1728, 369340), (1770, 360576), (1878, 339840), (1888, 338040), (1920, 332406), (2124, 300480), (2160, 295472), (2304, 277005), (2360, 270432), (2504, 254880), (2655, 240384), (2817, 226560), (2832, 225360), (2880, 221604), (3130, 203904), (3186, 200320), (3456, 184670), (3540, 180288), (3756, 169920), (3776, 169020), (3840, 166203), (4248, 150240), (4320, 147736), (4695, 135936), (4720, 135216), (5008, 127440), (5310, 120192), (5634, 113280), (5664, 112680), (5760, 110802), (6260, 101952), (6372, 100160), (6912, 92335), (7080, 90144), (7512, 84960), (7552, 84510), (7965, 80128), (8451, 75520), (8496, 75120), (8640, 73868), (9390, 67968), (9440, 67608), (10016, 63720), (10620, 60096), (11268, 56640), (11328, 56340), (11520, 55401), (12520, 50976), (12744, 50080), (14085, 45312), (14160, 45072), (15024, 42480), (15104, 42255), (15930, 40064), (16902, 37760), (16992, 37560), (17280, 36934), (18467, 34560), (18780, 33984), (18880, 33804), (20032, 31860), (21240, 30048), (22536, 28320), (22656, 28170), (25040, 25488)]