645739990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{9224857}}^1$

素因数の和:9224871

約数の個数: 16

約数和(自身を含む): 1328379552

約数和(自身を除く): 682639562

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 9224857, 18449714, 46124285, 64573999, 92248570, 129147998, 322869995, 645739990]

約数ペア:

[(1, 645739990), (2, 322869995), (5, 129147998), (7, 92248570), (10, 64573999), (14, 46124285), (35, 18449714), (70, 9224857)]