20512157859

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 30250161760

約数和(自身を除く): 9738003901

約数列:

[1, 3, 9, 139, 157, 181, 417, 471, 543, 577, 1251, 1413, 1629, 1731, 5193, 21823, 25159, 28417, 65469, 75477, 80203, 85251, 90589, 104437, 196407, 226431, 240609, 255753, 271767, 313311, 721827, 815301, 939933, 3949963, 11849889, 12591871, 14516743, 16396609, 35549667, 37775613, 43550229, 49189827, 113326839, 130650687, 147569481, 2279128651, 6837385953, 20512157859]

約数ペア:

[(1, 20512157859), (3, 6837385953), (9, 2279128651), (139, 147569481), (157, 130650687), (181, 113326839), (417, 49189827), (471, 43550229), (543, 37775613), (577, 35549667), (1251, 16396609), (1413, 14516743), (1629, 12591871), (1731, 11849889), (5193, 3949963), (21823, 939933), (25159, 815301), (28417, 721827), (65469, 313311), (75477, 271767), (80203, 255753), (85251, 240609), (90589, 226431), (104437, 196407)]