19238320

素因数分解:

$2^4\times 5^1\times {\mathrm{240479}}^1$

素因数の和:240492

約数の個数: 20

約数和(自身を含む): 44729280

約数和(自身を除く): 25490960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240479, 480958, 961916, 1202395, 1923832, 2404790, 3847664, 4809580, 9619160, 19238320]

約数ペア:

[(1, 19238320), (2, 9619160), (4, 4809580), (5, 3847664), (8, 2404790), (10, 1923832), (16, 1202395), (20, 961916), (40, 480958), (80, 240479)]