165135920

素因数分解:

$2^4\times 5^1\times {\mathrm{2064199}}^1$

素因数の和:2064212

約数の個数: 20

約数和(自身を含む): 383941200

約数和(自身を除く): 218805280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2064199, 4128398, 8256796, 10320995, 16513592, 20641990, 33027184, 41283980, 82567960, 165135920]

約数ペア:

[(1, 165135920), (2, 82567960), (4, 41283980), (5, 33027184), (8, 20641990), (10, 16513592), (16, 10320995), (20, 8256796), (40, 4128398), (80, 2064199)]