20089180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24499}}^1$

素因数の和:24549

約数の個数: 24

約数和(自身を含む): 43218000

約数和(自身を除く): 23128820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24499, 48998, 97996, 122495, 244990, 489980, 1004459, 2008918, 4017836, 5022295, 10044590, 20089180]

約数ペア:

[(1, 20089180), (2, 10044590), (4, 5022295), (5, 4017836), (10, 2008918), (20, 1004459), (41, 489980), (82, 244990), (164, 122495), (205, 97996), (410, 48998), (820, 24499)]