638104

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 1251180

約数和(自身を除く): 613076

約数列:

[1, 2, 4, 8, 31, 62, 83, 124, 166, 248, 332, 664, 961, 1922, 2573, 3844, 5146, 7688, 10292, 20584, 79763, 159526, 319052, 638104]

約数ペア:

[(1, 638104), (2, 319052), (4, 159526), (8, 79763), (31, 20584), (62, 10292), (83, 7688), (124, 5146), (166, 3844), (248, 2573), (332, 1922), (664, 961)]