20807540005

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1379353}}^1$

素因数の和:1379796

約数の個数: 16

約数和(自身を含む): 28602284544

約数和(自身を除く): 7794744539

約数列:

[1, 5, 7, 35, 431, 2155, 3017, 15085, 1379353, 6896765, 9655471, 48277355, 594501143, 2972505715, 4161508001, 20807540005]

約数ペア:

[(1, 20807540005), (5, 4161508001), (7, 2972505715), (35, 594501143), (431, 48277355), (2155, 9655471), (3017, 6896765), (15085, 1379353)]