18807925

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 24105600

約数和(自身を除く): 5297675

約数列:

[1, 5, 25, 79, 89, 107, 395, 445, 535, 1975, 2225, 2675, 7031, 8453, 9523, 35155, 42265, 47615, 175775, 211325, 238075, 752317, 3761585, 18807925]

約数ペア:

[(1, 18807925), (5, 3761585), (25, 752317), (79, 238075), (89, 211325), (107, 175775), (395, 47615), (445, 42265), (535, 35155), (1975, 9523), (2225, 8453), (2675, 7031)]