788102020

素因数分解:

$2^2\times 5^1\times {\mathrm{39405101}}^1$

素因数の和:39405110

約数の個数: 12

約数和(自身を含む): 1655014284

約数和(自身を除く): 866912264

約数列:

[1, 2, 4, 5, 10, 20, 39405101, 78810202, 157620404, 197025505, 394051010, 788102020]

約数ペア:

[(1, 788102020), (2, 394051010), (4, 197025505), (5, 157620404), (10, 78810202), (20, 39405101)]