208311320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 560701440

約数和(自身を除く): 352390120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 103, 124, 140, 155, 206, 217, 233, 248, 280, 310, 412, 434, 466, 515, 620, 721, 824, 868, 932, 1030, 1085, 1165, 1240, 1442, 1631, 1736, 1864, 2060, 2170, 2330, 2884, 3193, 3262, 3605, 4120, 4340, 4660, 5768, 6386, 6524, 7210, 7223, 8155, 8680, 9320, 12772, 13048, 14420, 14446, 15965, 16310, 22351, 23999, 25544, 28840, 28892, 31930, 32620, 36115, 44702, 47998, 50561, 57784, 63860, 65240, 72230, 89404, 95996, 101122, 111755, 119995, 127720, 144460, 167993, 178808, 191992, 202244, 223510, 239990, 252805, 288920, 335986, 404488, 447020, 479980, 505610, 671972, 743969, 839965, 894040, 959960, 1011220, 1343944, 1487938, 1679930, 2022440, 2975876, 3359860, 3719845, 5207783, 5951752, 6719720, 7439690, 10415566, 14879380, 20831132, 26038915, 29758760, 41662264, 52077830, 104155660, 208311320]

約数ペア:

[(1, 208311320), (2, 104155660), (4, 52077830), (5, 41662264), (7, 29758760), (8, 26038915), (10, 20831132), (14, 14879380), (20, 10415566), (28, 7439690), (31, 6719720), (35, 5951752), (40, 5207783), (56, 3719845), (62, 3359860), (70, 2975876), (103, 2022440), (124, 1679930), (140, 1487938), (155, 1343944), (206, 1011220), (217, 959960), (233, 894040), (248, 839965), (280, 743969), (310, 671972), (412, 505610), (434, 479980), (466, 447020), (515, 404488), (620, 335986), (721, 288920), (824, 252805), (868, 239990), (932, 223510), (1030, 202244), (1085, 191992), (1165, 178808), (1240, 167993), (1442, 144460), (1631, 127720), (1736, 119995), (1864, 111755), (2060, 101122), (2170, 95996), (2330, 89404), (2884, 72230), (3193, 65240), (3262, 63860), (3605, 57784), (4120, 50561), (4340, 47998), (4660, 44702), (5768, 36115), (6386, 32620), (6524, 31930), (7210, 28892), (7223, 28840), (8155, 25544), (8680, 23999), (9320, 22351), (12772, 16310), (13048, 15965), (14420, 14446)]