19690996820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89504531}}^1$

素因数の和:89504551

約数の個数: 24

約数和(自身を含む): 45110284128

約数和(自身を除く): 25419287308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89504531, 179009062, 358018124, 447522655, 895045310, 984549841, 1790090620, 1969099682, 3938199364, 4922749205, 9845498410, 19690996820]

約数ペア:

[(1, 19690996820), (2, 9845498410), (4, 4922749205), (5, 3938199364), (10, 1969099682), (11, 1790090620), (20, 984549841), (22, 895045310), (44, 447522655), (55, 358018124), (110, 179009062), (220, 89504531)]