129970384

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{19861}}^1$

素因数の和:20278

約数の個数: 20

約数和(自身を含む): 252446020

約数和(自身を除く): 122475636

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 19861, 39722, 79444, 158888, 317776, 8123149, 16246298, 32492596, 64985192, 129970384]

約数ペア:

[(1, 129970384), (2, 64985192), (4, 32492596), (8, 16246298), (16, 8123149), (409, 317776), (818, 158888), (1636, 79444), (3272, 39722), (6544, 19861)]