20807202820

素因数分解:

$2^2\times 5^1\times {\mathrm{2203}}^1\times {\mathrm{472247}}^1$

素因数の和:474459

約数の個数: 24

約数和(自身を含む): 43715052864

約数和(自身を除く): 22907850044

約数列:

[1, 2, 4, 5, 10, 20, 2203, 4406, 8812, 11015, 22030, 44060, 472247, 944494, 1888988, 2361235, 4722470, 9444940, 1040360141, 2080720282, 4161440564, 5201800705, 10403601410, 20807202820]

約数ペア:

[(1, 20807202820), (2, 10403601410), (4, 5201800705), (5, 4161440564), (10, 2080720282), (20, 1040360141), (2203, 9444940), (4406, 4722470), (8812, 2361235), (11015, 1888988), (22030, 944494), (44060, 472247)]