220145948

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{454847}}^1$

素因数の和:454873

約数の個数: 18

約数和(自身を含む): 423463488

約数和(自身を除く): 203317540

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 454847, 909694, 1819388, 5003317, 10006634, 20013268, 55036487, 110072974, 220145948]

約数ペア:

[(1, 220145948), (2, 110072974), (4, 55036487), (11, 20013268), (22, 10006634), (44, 5003317), (121, 1819388), (242, 909694), (484, 454847)]