217029890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281857}}^1$

素因数の和:281882

約数の個数: 32

約数和(自身を含む): 487050624

約数和(自身を除く): 270020734

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 281857, 563714, 1409285, 1972999, 2818570, 3100427, 3945998, 6200854, 9864995, 15502135, 19729990, 21702989, 31004270, 43405978, 108514945, 217029890]

約数ペア:

[(1, 217029890), (2, 108514945), (5, 43405978), (7, 31004270), (10, 21702989), (11, 19729990), (14, 15502135), (22, 9864995), (35, 6200854), (55, 3945998), (70, 3100427), (77, 2818570), (110, 1972999), (154, 1409285), (385, 563714), (770, 281857)]