200907920

素因数分解:

$2^4\times 5^1\times {\mathrm{2511349}}^1$

素因数の和:2511362

約数の個数: 20

約数和(自身を含む): 467111100

約数和(自身を除く): 266203180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2511349, 5022698, 10045396, 12556745, 20090792, 25113490, 40181584, 50226980, 100453960, 200907920]

約数ペア:

[(1, 200907920), (2, 100453960), (4, 50226980), (5, 40181584), (8, 25113490), (10, 20090792), (16, 12556745), (20, 10045396), (40, 5022698), (80, 2511349)]