218202280

素因数分解:

$2^3\times 5^1\times {\mathrm{5455057}}^1$

素因数の和:5455068

約数の個数: 16

約数和(自身を含む): 490955220

約数和(自身を除く): 272752940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5455057, 10910114, 21820228, 27275285, 43640456, 54550570, 109101140, 218202280]

約数ペア:

[(1, 218202280), (2, 109101140), (4, 54550570), (5, 43640456), (8, 27275285), (10, 21820228), (20, 10910114), (40, 5455057)]