388581680

素因数分解:

$2^4\times 5^1\times {\mathrm{4857271}}^1$

素因数の和:4857284

約数の個数: 20

約数和(自身を含む): 903452592

約数和(自身を除く): 514870912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4857271, 9714542, 19429084, 24286355, 38858168, 48572710, 77716336, 97145420, 194290840, 388581680]

約数ペア:

[(1, 388581680), (2, 194290840), (4, 97145420), (5, 77716336), (8, 48572710), (10, 38858168), (16, 24286355), (20, 19429084), (40, 9714542), (80, 4857271)]