21803055280

素因数分解:

$2^4\times 5^1\times {\mathrm{272538191}}^1$

素因数の和:272538204

約数の個数: 20

約数和(自身を含む): 50692103712

約数和(自身を除く): 28889048432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272538191, 545076382, 1090152764, 1362690955, 2180305528, 2725381910, 4360611056, 5450763820, 10901527640, 21803055280]

約数ペア:

[(1, 21803055280), (2, 10901527640), (4, 5450763820), (5, 4360611056), (8, 2725381910), (10, 2180305528), (16, 1362690955), (20, 1090152764), (40, 545076382), (80, 272538191)]