15898175

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 21081984

約数和(自身を除く): 5183809

約数列:

[1, 5, 23, 25, 43, 115, 215, 575, 643, 989, 1075, 3215, 4945, 14789, 16075, 24725, 27649, 73945, 138245, 369725, 635927, 691225, 3179635, 15898175]

約数ペア:

[(1, 15898175), (5, 3179635), (23, 691225), (25, 635927), (43, 369725), (115, 138245), (215, 73945), (575, 27649), (643, 24725), (989, 16075), (1075, 14789), (3215, 4945)]