77990308

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{161137}}^1$

素因数の和:161163

約数の個数: 18

約数和(自身を含む): 150019478

約数和(自身を除く): 72029170

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 161137, 322274, 644548, 1772507, 3545014, 7090028, 19497577, 38995154, 77990308]

約数ペア:

[(1, 77990308), (2, 38995154), (4, 19497577), (11, 7090028), (22, 3545014), (44, 1772507), (121, 644548), (242, 322274), (484, 161137)]