8939980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{63857}}^1$

素因数の和:63873

約数の個数: 24

約数和(自身を含む): 21456288

約数和(自身を除く): 12516308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 63857, 127714, 255428, 319285, 446999, 638570, 893998, 1277140, 1787996, 2234995, 4469990, 8939980]

約数ペア:

[(1, 8939980), (2, 4469990), (4, 2234995), (5, 1787996), (7, 1277140), (10, 893998), (14, 638570), (20, 446999), (28, 319285), (35, 255428), (70, 127714), (140, 63857)]