208285280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:917

約数の個数: 144

約数和(自身を含む): 591566976

約数和(自身を除く): 383281696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 857, 868, 980, 992, 1085, 1120, 1240, 1519, 1568, 1714, 1736, 1960, 2170, 2480, 3038, 3428, 3472, 3920, 4285, 4340, 4960, 5999, 6076, 6856, 6944, 7595, 7840, 8570, 8680, 11998, 12152, 13712, 15190, 17140, 17360, 23996, 24304, 26567, 27424, 29995, 30380, 34280, 34720, 41993, 47992, 48608, 53134, 59990, 60760, 68560, 83986, 95984, 106268, 119980, 121520, 132835, 137120, 167972, 185969, 191968, 209965, 212536, 239960, 243040, 265670, 335944, 371938, 419930, 425072, 479920, 531340, 671888, 743876, 839860, 850144, 929845, 959840, 1062680, 1301783, 1343776, 1487752, 1679720, 1859690, 2125360, 2603566, 2975504, 3359440, 3719380, 4250720, 5207132, 5951008, 6508915, 6718880, 7438760, 10414264, 13017830, 14877520, 20828528, 26035660, 29755040, 41657056, 52071320, 104142640, 208285280]

約数ペア:

[(1, 208285280), (2, 104142640), (4, 52071320), (5, 41657056), (7, 29755040), (8, 26035660), (10, 20828528), (14, 14877520), (16, 13017830), (20, 10414264), (28, 7438760), (31, 6718880), (32, 6508915), (35, 5951008), (40, 5207132), (49, 4250720), (56, 3719380), (62, 3359440), (70, 2975504), (80, 2603566), (98, 2125360), (112, 1859690), (124, 1679720), (140, 1487752), (155, 1343776), (160, 1301783), (196, 1062680), (217, 959840), (224, 929845), (245, 850144), (248, 839860), (280, 743876), (310, 671888), (392, 531340), (434, 479920), (490, 425072), (496, 419930), (560, 371938), (620, 335944), (784, 265670), (857, 243040), (868, 239960), (980, 212536), (992, 209965), (1085, 191968), (1120, 185969), (1240, 167972), (1519, 137120), (1568, 132835), (1714, 121520), (1736, 119980), (1960, 106268), (2170, 95984), (2480, 83986), (3038, 68560), (3428, 60760), (3472, 59990), (3920, 53134), (4285, 48608), (4340, 47992), (4960, 41993), (5999, 34720), (6076, 34280), (6856, 30380), (6944, 29995), (7595, 27424), (7840, 26567), (8570, 24304), (8680, 23996), (11998, 17360), (12152, 17140), (13712, 15190)]