278399520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:488

約数の個数: 288

約数和(自身を含む): 1103880960

約数和(自身を除く): 825481440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 71, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 142, 144, 160, 168, 180, 210, 213, 224, 240, 252, 280, 284, 288, 315, 336, 355, 360, 389, 420, 426, 480, 497, 504, 560, 568, 630, 639, 672, 710, 720, 778, 840, 852, 994, 1008, 1065, 1120, 1136, 1167, 1260, 1278, 1420, 1440, 1491, 1556, 1680, 1704, 1945, 1988, 2016, 2130, 2272, 2334, 2485, 2520, 2556, 2723, 2840, 2982, 3112, 3195, 3360, 3408, 3501, 3890, 3976, 4260, 4473, 4668, 4970, 5040, 5112, 5446, 5680, 5835, 5964, 6224, 6390, 6816, 7002, 7455, 7780, 7952, 8169, 8520, 8946, 9336, 9940, 10080, 10224, 10892, 11360, 11670, 11928, 12448, 12780, 13615, 14004, 14910, 15560, 15904, 16338, 17040, 17505, 17892, 18672, 19880, 20448, 21784, 22365, 23340, 23856, 24507, 25560, 27230, 27619, 28008, 29820, 31120, 32676, 34080, 35010, 35784, 37344, 39760, 40845, 43568, 44730, 46680, 47712, 49014, 51120, 54460, 55238, 56016, 59640, 62240, 65352, 70020, 71568, 79520, 81690, 82857, 87136, 89460, 93360, 98028, 102240, 108920, 110476, 112032, 119280, 122535, 130704, 138095, 140040, 143136, 163380, 165714, 178920, 186720, 193333, 196056, 217840, 220952, 238560, 245070, 248571, 261408, 276190, 280080, 326760, 331428, 357840, 386666, 392112, 414285, 435680, 441904, 490140, 497142, 552380, 560160, 579999, 653520, 662856, 715680, 773332, 784224, 828570, 883808, 966665, 980280, 994284, 1104760, 1159998, 1242855, 1307040, 1325712, 1546664, 1657140, 1739997, 1933330, 1960560, 1988568, 2209520, 2319996, 2485710, 2651424, 2899995, 3093328, 3314280, 3479994, 3866660, 3921120, 3977136, 4419040, 4639992, 4971420, 5799990, 6186656, 6628560, 6959988, 7733320, 7954272, 8699985, 9279984, 9942840, 11599980, 13257120, 13919976, 15466640, 17399970, 18559968, 19885680, 23199960, 27839952, 30933280, 34799940, 39771360, 46399920, 55679904, 69599880, 92799840, 139199760, 278399520]

約数ペア:

[(1, 278399520), (2, 139199760), (3, 92799840), (4, 69599880), (5, 55679904), (6, 46399920), (7, 39771360), (8, 34799940), (9, 30933280), (10, 27839952), (12, 23199960), (14, 19885680), (15, 18559968), (16, 17399970), (18, 15466640), (20, 13919976), (21, 13257120), (24, 11599980), (28, 9942840), (30, 9279984), (32, 8699985), (35, 7954272), (36, 7733320), (40, 6959988), (42, 6628560), (45, 6186656), (48, 5799990), (56, 4971420), (60, 4639992), (63, 4419040), (70, 3977136), (71, 3921120), (72, 3866660), (80, 3479994), (84, 3314280), (90, 3093328), (96, 2899995), (105, 2651424), (112, 2485710), (120, 2319996), (126, 2209520), (140, 1988568), (142, 1960560), (144, 1933330), (160, 1739997), (168, 1657140), (180, 1546664), (210, 1325712), (213, 1307040), (224, 1242855), (240, 1159998), (252, 1104760), (280, 994284), (284, 980280), (288, 966665), (315, 883808), (336, 828570), (355, 784224), (360, 773332), (389, 715680), (420, 662856), (426, 653520), (480, 579999), (497, 560160), (504, 552380), (560, 497142), (568, 490140), (630, 441904), (639, 435680), (672, 414285), (710, 392112), (720, 386666), (778, 357840), (840, 331428), (852, 326760), (994, 280080), (1008, 276190), (1065, 261408), (1120, 248571), (1136, 245070), (1167, 238560), (1260, 220952), (1278, 217840), (1420, 196056), (1440, 193333), (1491, 186720), (1556, 178920), (1680, 165714), (1704, 163380), (1945, 143136), (1988, 140040), (2016, 138095), (2130, 130704), (2272, 122535), (2334, 119280), (2485, 112032), (2520, 110476), (2556, 108920), (2723, 102240), (2840, 98028), (2982, 93360), (3112, 89460), (3195, 87136), (3360, 82857), (3408, 81690), (3501, 79520), (3890, 71568), (3976, 70020), (4260, 65352), (4473, 62240), (4668, 59640), (4970, 56016), (5040, 55238), (5112, 54460), (5446, 51120), (5680, 49014), (5835, 47712), (5964, 46680), (6224, 44730), (6390, 43568), (6816, 40845), (7002, 39760), (7455, 37344), (7780, 35784), (7952, 35010), (8169, 34080), (8520, 32676), (8946, 31120), (9336, 29820), (9940, 28008), (10080, 27619), (10224, 27230), (10892, 25560), (11360, 24507), (11670, 23856), (11928, 23340), (12448, 22365), (12780, 21784), (13615, 20448), (14004, 19880), (14910, 18672), (15560, 17892), (15904, 17505), (16338, 17040)]