396689302544

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{79720519}}^1$

素因数の和:79720838

約数の個数: 20

約数和(自身を含む): 771056869440

約数和(自身を除く): 374367566896

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4976, 79720519, 159441038, 318882076, 637764152, 1275528304, 24793081409, 49586162818, 99172325636, 198344651272, 396689302544]

約数ペア:

[(1, 396689302544), (2, 198344651272), (4, 99172325636), (8, 49586162818), (16, 24793081409), (311, 1275528304), (622, 637764152), (1244, 318882076), (2488, 159441038), (4976, 79720519)]