138335888

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{278903}}^1$

素因数の和:278942

約数の個数: 20

約数和(自身を含む): 276672768

約数和(自身を除く): 138336880

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 278903, 557806, 1115612, 2231224, 4462448, 8645993, 17291986, 34583972, 69167944, 138335888]

約数ペア:

[(1, 138335888), (2, 69167944), (4, 34583972), (8, 17291986), (16, 8645993), (31, 4462448), (62, 2231224), (124, 1115612), (248, 557806), (496, 278903)]