20893130

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17986870

約数列:

[1, 2, 5, 10, 53, 79, 106, 158, 265, 395, 499, 530, 790, 998, 2495, 4187, 4990, 8374, 20935, 26447, 39421, 41870, 52894, 78842, 132235, 197105, 264470, 394210, 2089313, 4178626, 10446565, 20893130]

約数ペア:

[(1, 20893130), (2, 10446565), (5, 4178626), (10, 2089313), (53, 394210), (79, 264470), (106, 197105), (158, 132235), (265, 78842), (395, 52894), (499, 41870), (530, 39421), (790, 26447), (998, 20935), (2495, 8374), (4187, 4990)]