157729540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{72353}}^1$

素因数の和:72471

約数の個数: 24

約数和(自身を含む): 334275480

約数和(自身を除く): 176545940

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 72353, 144706, 289412, 361765, 723530, 1447060, 7886477, 15772954, 31545908, 39432385, 78864770, 157729540]

約数ペア:

[(1, 157729540), (2, 78864770), (4, 39432385), (5, 31545908), (10, 15772954), (20, 7886477), (109, 1447060), (218, 723530), (436, 361765), (545, 289412), (1090, 144706), (2180, 72353)]