19459720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69499}}^1$

素因数の和:69517

約数の個数: 32

約数和(自身を含む): 50040000

約数和(自身を除く): 30580280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69499, 138998, 277996, 347495, 486493, 555992, 694990, 972986, 1389980, 1945972, 2432465, 2779960, 3891944, 4864930, 9729860, 19459720]

約数ペア:

[(1, 19459720), (2, 9729860), (4, 4864930), (5, 3891944), (7, 2779960), (8, 2432465), (10, 1945972), (14, 1389980), (20, 972986), (28, 694990), (35, 555992), (40, 486493), (56, 347495), (70, 277996), (140, 138998), (280, 69499)]