349799440

素因数分解:

$2^4\times 5^1\times {\mathrm{4372493}}^1$

素因数の和:4372506

約数の個数: 20

約数和(自身を含む): 813283884

約数和(自身を除く): 463484444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4372493, 8744986, 17489972, 21862465, 34979944, 43724930, 69959888, 87449860, 174899720, 349799440]

約数ペア:

[(1, 349799440), (2, 174899720), (4, 87449860), (5, 69959888), (8, 43724930), (10, 34979944), (16, 21862465), (20, 17489972), (40, 8744986), (80, 4372493)]