20559980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146857}}^1$

素因数の和:146873

約数の個数: 24

約数和(自身を含む): 49344288

約数和(自身を除く): 28784308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146857, 293714, 587428, 734285, 1027999, 1468570, 2055998, 2937140, 4111996, 5139995, 10279990, 20559980]

約数ペア:

[(1, 20559980), (2, 10279990), (4, 5139995), (5, 4111996), (7, 2937140), (10, 2055998), (14, 1468570), (20, 1027999), (28, 734285), (35, 587428), (70, 293714), (140, 146857)]