13238320

素因数分解:

$2^4\times 5^1\times {\mathrm{165479}}^1$

素因数の和:165492

約数の個数: 20

約数和(自身を含む): 30779280

約数和(自身を除く): 17540960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165479, 330958, 661916, 827395, 1323832, 1654790, 2647664, 3309580, 6619160, 13238320]

約数ペア:

[(1, 13238320), (2, 6619160), (4, 3309580), (5, 2647664), (8, 1654790), (10, 1323832), (16, 827395), (20, 661916), (40, 330958), (80, 165479)]