20380408

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 39540960

約数和(自身を除く): 19160552

約数列:

[1, 2, 4, 8, 53, 71, 106, 142, 212, 284, 424, 568, 677, 1354, 2708, 3763, 5416, 7526, 15052, 30104, 35881, 48067, 71762, 96134, 143524, 192268, 287048, 384536, 2547551, 5095102, 10190204, 20380408]

約数ペア:

[(1, 20380408), (2, 10190204), (4, 5095102), (8, 2547551), (53, 384536), (71, 287048), (106, 192268), (142, 143524), (212, 96134), (284, 71762), (424, 48067), (568, 35881), (677, 30104), (1354, 15052), (2708, 7526), (3763, 5416)]