128412778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{47951}}^1$

素因数の和:48069

約数の個数: 16

約数和(自身を含む): 209454336

約数和(自身を除く): 81041558

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 47951, 95902, 623363, 1246726, 4938953, 9877906, 64206389, 128412778]

約数ペア:

[(1, 128412778), (2, 64206389), (13, 9877906), (26, 4938953), (103, 1246726), (206, 623363), (1339, 95902), (2678, 47951)]