8985925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 12297824

約数和(自身を除く): 3311899

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 643, 1075, 2795, 3215, 8359, 13975, 16075, 27649, 41795, 138245, 208975, 359437, 691225, 1797185, 8985925]

約数ペア:

[(1, 8985925), (5, 1797185), (13, 691225), (25, 359437), (43, 208975), (65, 138245), (215, 41795), (325, 27649), (559, 16075), (643, 13975), (1075, 8359), (2795, 3215)]