128743088

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{423497}}^1$

素因数の和:423524

約数の個数: 20

約数和(自身を含む): 262568760

約数和(自身を除く): 133825672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 423497, 846994, 1693988, 3387976, 6775952, 8046443, 16092886, 32185772, 64371544, 128743088]

約数ペア:

[(1, 128743088), (2, 64371544), (4, 32185772), (8, 16092886), (16, 8046443), (19, 6775952), (38, 3387976), (76, 1693988), (152, 846994), (304, 423497)]