388618040

素因数分解:

$2^3\times 5^1\times {\mathrm{9715451}}^1$

素因数の和:9715462

約数の個数: 16

約数和(自身を含む): 874390680

約数和(自身を除く): 485772640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9715451, 19430902, 38861804, 48577255, 77723608, 97154510, 194309020, 388618040]

約数ペア:

[(1, 388618040), (2, 194309020), (4, 97154510), (5, 77723608), (8, 48577255), (10, 38861804), (20, 19430902), (40, 9715451)]