87980068

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{181777}}^1$

素因数の和:181803

約数の個数: 18

約数和(自身を含む): 169235318

約数和(自身を除く): 81255250

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 181777, 363554, 727108, 1999547, 3999094, 7998188, 21995017, 43990034, 87980068]

約数ペア:

[(1, 87980068), (2, 43990034), (4, 21995017), (11, 7998188), (22, 3999094), (44, 1999547), (121, 727108), (242, 363554), (484, 181777)]