87139990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1244857}}^1$

素因数の和:1244871

約数の個数: 16

約数和(自身を含む): 179259552

約数和(自身を除く): 92119562

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1244857, 2489714, 6224285, 8713999, 12448570, 17427998, 43569995, 87139990]

約数ペア:

[(1, 87139990), (2, 43569995), (5, 17427998), (7, 12448570), (10, 8713999), (14, 6224285), (35, 2489714), (70, 1244857)]