12903950

素因数分解:

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

素因数の和:1052

約数の個数: 24

約数和(自身を含む): 24098160

約数和(自身を除く): 11194210

約数列:

[1, 2, 5, 10, 25, 50, 409, 631, 818, 1262, 2045, 3155, 4090, 6310, 10225, 15775, 20450, 31550, 258079, 516158, 1290395, 2580790, 6451975, 12903950]

約数ペア:

[(1, 12903950), (2, 6451975), (5, 2580790), (10, 1290395), (25, 516158), (50, 258079), (409, 31550), (631, 20450), (818, 15775), (1262, 10225), (2045, 6310), (3155, 4090)]