257616325

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1979}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 329978880

約数和(自身を除く): 72362555

約数列:

[1, 5, 25, 41, 127, 205, 635, 1025, 1979, 3175, 5207, 9895, 26035, 49475, 81139, 130175, 251333, 405695, 1256665, 2028475, 6283325, 10304653, 51523265, 257616325]

約数ペア:

[(1, 257616325), (5, 51523265), (25, 10304653), (41, 6283325), (127, 2028475), (205, 1256665), (635, 405695), (1025, 251333), (1979, 130175), (3175, 81139), (5207, 49475), (9895, 26035)]