128947376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{424169}}^1$

素因数の和:424196

約数の個数: 20

約数和(自身を含む): 262985400

約数和(自身を除く): 134038024

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 424169, 848338, 1696676, 3393352, 6786704, 8059211, 16118422, 32236844, 64473688, 128947376]

約数ペア:

[(1, 128947376), (2, 64473688), (4, 32236844), (8, 16118422), (16, 8059211), (19, 6786704), (38, 3393352), (76, 1696676), (152, 848338), (304, 424169)]