19671425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 25861440

約数和(自身を除く): 6190015

約数列:

[1, 5, 25, 29, 43, 145, 215, 631, 725, 1075, 1247, 3155, 6235, 15775, 18299, 27133, 31175, 91495, 135665, 457475, 678325, 786857, 3934285, 19671425]

約数ペア:

[(1, 19671425), (5, 3934285), (25, 786857), (29, 678325), (43, 457475), (145, 135665), (215, 91495), (631, 31175), (725, 27133), (1075, 18299), (1247, 15775), (3155, 6235)]