20745350

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9649}}^1$

素因数の和:9704

約数の個数: 24

約数和(自身を含む): 39487800

約数和(自身を除く): 18742450

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9649, 19298, 48245, 96490, 241225, 414907, 482450, 829814, 2074535, 4149070, 10372675, 20745350]

約数ペア:

[(1, 20745350), (2, 10372675), (5, 4149070), (10, 2074535), (25, 829814), (43, 482450), (50, 414907), (86, 241225), (215, 96490), (430, 48245), (1075, 19298), (2150, 9649)]