2220875

素因数分解:

$5^3\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 16

約数和(自身を含む): 2814240

約数和(自身を除く): 593365

約数列:

[1, 5, 25, 109, 125, 163, 545, 815, 2725, 4075, 13625, 17767, 20375, 88835, 444175, 2220875]

約数ペア:

[(1, 2220875), (5, 444175), (25, 88835), (109, 20375), (125, 17767), (163, 13625), (545, 4075), (815, 2725)]