400956480

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 280

約数和(自身を含む): 1475232000

約数和(自身を除く): 1074275520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 81, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 162, 180, 186, 192, 216, 240, 248, 270, 279, 288, 310, 320, 324, 360, 372, 405, 432, 465, 480, 496, 499, 540, 558, 576, 620, 648, 720, 744, 810, 837, 864, 930, 960, 992, 998, 1080, 1116, 1240, 1296, 1395, 1440, 1488, 1497, 1620, 1674, 1728, 1860, 1984, 1996, 2160, 2232, 2480, 2495, 2511, 2592, 2790, 2880, 2976, 2994, 3240, 3348, 3720, 3992, 4185, 4320, 4464, 4491, 4960, 4990, 5022, 5184, 5580, 5952, 5988, 6480, 6696, 7440, 7485, 7984, 8370, 8640, 8928, 8982, 9920, 9980, 10044, 11160, 11976, 12555, 12960, 13392, 13473, 14880, 14970, 15469, 15968, 16740, 17856, 17964, 19960, 20088, 22320, 22455, 23952, 25110, 25920, 26784, 26946, 29760, 29940, 30938, 31936, 33480, 35928, 39920, 40176, 40419, 44640, 44910, 46407, 47904, 50220, 53568, 53892, 59880, 61876, 66960, 67365, 71856, 77345, 79840, 80352, 80838, 89280, 89820, 92814, 95808, 100440, 107784, 119760, 123752, 133920, 134730, 139221, 143712, 154690, 159680, 160704, 161676, 179640, 185628, 200880, 202095, 215568, 232035, 239520, 247504, 267840, 269460, 278442, 287424, 309380, 323352, 359280, 371256, 401760, 404190, 417663, 431136, 464070, 479040, 495008, 538920, 556884, 618760, 646704, 696105, 718560, 742512, 803520, 808380, 835326, 862272, 928140, 990016, 1077840, 1113768, 1237520, 1252989, 1293408, 1392210, 1437120, 1485024, 1616760, 1670652, 1856280, 2088315, 2155680, 2227536, 2475040, 2505978, 2586816, 2784420, 2970048, 3233520, 3341304, 3712560, 4176630, 4311360, 4455072, 4950080, 5011956, 5568840, 6264945, 6467040, 6682608, 7425120, 8353260, 8910144, 10023912, 11137680, 12529890, 12934080, 13365216, 14850240, 16706520, 20047824, 22275360, 25059780, 26730432, 33413040, 40095648, 44550720, 50119560, 66826080, 80191296, 100239120, 133652160, 200478240, 400956480]

約数ペア:

[(1, 400956480), (2, 200478240), (3, 133652160), (4, 100239120), (5, 80191296), (6, 66826080), (8, 50119560), (9, 44550720), (10, 40095648), (12, 33413040), (15, 26730432), (16, 25059780), (18, 22275360), (20, 20047824), (24, 16706520), (27, 14850240), (30, 13365216), (31, 12934080), (32, 12529890), (36, 11137680), (40, 10023912), (45, 8910144), (48, 8353260), (54, 7425120), (60, 6682608), (62, 6467040), (64, 6264945), (72, 5568840), (80, 5011956), (81, 4950080), (90, 4455072), (93, 4311360), (96, 4176630), (108, 3712560), (120, 3341304), (124, 3233520), (135, 2970048), (144, 2784420), (155, 2586816), (160, 2505978), (162, 2475040), (180, 2227536), (186, 2155680), (192, 2088315), (216, 1856280), (240, 1670652), (248, 1616760), (270, 1485024), (279, 1437120), (288, 1392210), (310, 1293408), (320, 1252989), (324, 1237520), (360, 1113768), (372, 1077840), (405, 990016), (432, 928140), (465, 862272), (480, 835326), (496, 808380), (499, 803520), (540, 742512), (558, 718560), (576, 696105), (620, 646704), (648, 618760), (720, 556884), (744, 538920), (810, 495008), (837, 479040), (864, 464070), (930, 431136), (960, 417663), (992, 404190), (998, 401760), (1080, 371256), (1116, 359280), (1240, 323352), (1296, 309380), (1395, 287424), (1440, 278442), (1488, 269460), (1497, 267840), (1620, 247504), (1674, 239520), (1728, 232035), (1860, 215568), (1984, 202095), (1996, 200880), (2160, 185628), (2232, 179640), (2480, 161676), (2495, 160704), (2511, 159680), (2592, 154690), (2790, 143712), (2880, 139221), (2976, 134730), (2994, 133920), (3240, 123752), (3348, 119760), (3720, 107784), (3992, 100440), (4185, 95808), (4320, 92814), (4464, 89820), (4491, 89280), (4960, 80838), (4990, 80352), (5022, 79840), (5184, 77345), (5580, 71856), (5952, 67365), (5988, 66960), (6480, 61876), (6696, 59880), (7440, 53892), (7485, 53568), (7984, 50220), (8370, 47904), (8640, 46407), (8928, 44910), (8982, 44640), (9920, 40419), (9980, 40176), (10044, 39920), (11160, 35928), (11976, 33480), (12555, 31936), (12960, 30938), (13392, 29940), (13473, 29760), (14880, 26946), (14970, 26784), (15469, 25920), (15968, 25110), (16740, 23952), (17856, 22455), (17964, 22320), (19960, 20088)]