20512019888

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31268323}}^1$

素因数の和:31268372

約数の個数: 20

約数和(自身を含む): 40711357848

約数和(自身を除く): 20199337960

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31268323, 62536646, 125073292, 250146584, 500293168, 1282001243, 2564002486, 5128004972, 10256009944, 20512019888]

約数ペア:

[(1, 20512019888), (2, 10256009944), (4, 5128004972), (8, 2564002486), (16, 1282001243), (41, 500293168), (82, 250146584), (164, 125073292), (328, 62536646), (656, 31268323)]