5161580

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{631}}^1$

素因数の和:1049

約数の個数: 24

約数和(自身を含む): 10883040

約数和(自身を除く): 5721460

約数列:

[1, 2, 4, 5, 10, 20, 409, 631, 818, 1262, 1636, 2045, 2524, 3155, 4090, 6310, 8180, 12620, 258079, 516158, 1032316, 1290395, 2580790, 5161580]

約数ペア:

[(1, 5161580), (2, 2580790), (4, 1290395), (5, 1032316), (10, 516158), (20, 258079), (409, 12620), (631, 8180), (818, 6310), (1262, 4090), (1636, 3155), (2045, 2524)]