20788205

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1$

素因数の和:1300

約数の個数: 16

約数和(自身を含む): 26213760

約数和(自身を除く): 5425555

約数列:

[1, 5, 23, 115, 163, 815, 1109, 3749, 5545, 18745, 25507, 127535, 180767, 903835, 4157641, 20788205]

約数ペア:

[(1, 20788205), (5, 4157641), (23, 903835), (115, 180767), (163, 127535), (815, 25507), (1109, 18745), (3749, 5545)]