40389020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{288493}}^1$

素因数の和:288509

約数の個数: 24

約数和(自身を含む): 96933984

約数和(自身を除く): 56544964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 288493, 576986, 1153972, 1442465, 2019451, 2884930, 4038902, 5769860, 8077804, 10097255, 20194510, 40389020]

約数ペア:

[(1, 40389020), (2, 20194510), (4, 10097255), (5, 8077804), (7, 5769860), (10, 4038902), (14, 2884930), (20, 2019451), (28, 1442465), (35, 1153972), (70, 576986), (140, 288493)]